вычислите tg( arcsin(-3/5) + arccos(-1/V2) )
arcsin(-3/5)= — arccos(4/5)
arccos(-1/\/2) = пи — arcsin(1/\/2) = 3пи/4
tg(arcsin(-3/5) + arccos(-1/\/2)) = sin(arcsin(-3/5) + arccos(-1/\/2)) / cos(arcsin(-3/5) + arccos(-1/\/2))=-7
sin(arcsin(-3/5)+arccos(-1/\/2)) = sin(arcsin(-3/5))*cos(arccos(-1/\/2))+cos(arcsin(-3/5))*sin(arccos(-1/\/2)) = -3/5*(-1/\/2)+(4/5)*(1/\/2)=7/(5\/2)
cos(arcsin(-3/5)+arccos(-1/\/2))=cos(arcsin(-3/5))*cos(arccos(-1/\/2))-sin(arccos(-1/\/2))*sin(arcsin(-3/5))=4/5*(-1/\/2)-(-3/5)*(1/\/2) = -1/(5\/2)
ответ:-7