Question

решите срочно!!!!! плизз

sin(п/2-x)=- √2/2

Answer 1

π/2-x=arcsin(√2/2)
π=(-x+2)π/4
(-x+2)π/4=5
-x+2π*4/π
-x+2=π*4/π
-x+2=4
-x=2
x=-2