Вычислите
1)
2)
3)
4)
Упростите иррациональное выражение
1)
2)<span style="font-family: Symbol; font-size: medium;"><span>-</span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>22 </span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 13px; white-space: normal;"></span></span></span>3)
<span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 13px; white-space: normal;"></span></span></span>4)22
Найдите
Какое из перечисленных чисел является иррациональным?
1)4,99
2)5,4(15)
<span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>3)<img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_test_2281402_312_4_image001.gif" alt="" /> 4)3,141592… <br />Какие числа называются целыми? </span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>1)положительные</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>2)натуральные числа, числа противоположные натуральным, и число 0</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>3)натуральные числа и числа противоположные натуральным</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><br /></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>Вычислите <img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_qtest_2281402_126_1_image001.gif" alt="" /><br /></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>1)3,4</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>2)0,3</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>3)0,03</span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><br /></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="color: black; font-family: 'Times New Roman CYR'; font-size: medium;"><span>Упростите </span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_qtest_2281402_2_1_image001.gif" alt="" /></span></span><br /></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>1)<img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_test_2281402_2_1_image001.gif" alt="" /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>2)<img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_test_2281402_2_3_image001.gif" alt="" /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>3)<img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_test_2281402_2_2_image001.gif" alt="" /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>4)<img src="http://www.open-edu.ru/mod/quiz/quiz_images/questpic_test_2281402_2_4_image001.gif" alt="" /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><br /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>Сколько целых чисел удовлетворяют неравенству </span></span><span style="font-family: Symbol; font-size: medium;"><span>-</span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>8 </span></span><span style="font-family: Symbol; font-size: medium;"><span><</span></span><em><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span lang="EN-US">x</span></span></em><span style="font-family: Symbol; font-size: medium;"><span><</span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span> 4?</span></span><br /></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>1)9</span></span></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span><span style="font-family: 'Times New Roman CYR'; font-size: medium;"><span>2)12</span></span></span></span></span></span></span></span></span></span></span></span><span style="font-family: 'Times New Roman CYR'; font-size: small;">3)10</span><span style="font-family: 'Times New Roman CYR'; font-size: small;">4)11</span>
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