Question

Sin ^2 inverse minus 1 =?

Answer 1

sin⁻¹ -1 =θ

-1 = sinθ

-1 = sin270

so θ = 270

Answer 2

$Sin^{-1} (-1) =sin^{-1} ( sin270)$

=270°

Sin^-1 [ -1]= ∅.

-1=sin∅

sin270 = sin∅

∅ = 270°