Find the exact solution to the equation without a calculator.
-$\sin \left( \sin ^ { - 1 } x \right) = - 0.8$
A) 0
B) $- 1.6$
C) $- 0.8$
D) $- 0.4$

Name: Find the exact solution to the equation without a calculator. -$\sin \left( \sin ^ { - 1 } x \right) = - 0.8$ A) 0 B) $- 1.6$ C) $- 0.8$ D) $- 0.4$
Brand: Quizplus
Rating: 4.9 (46 reviews)

Question

Quizplus · Accepted Answer

The equation $\sin(\sin^{-1}x) = -0.8$ simplifies directly to $x = -0.8$ because $\sin^{-1}x$ is the angle whose sine is $x$, and taking the sine of that angle gives you back $x$.

Find the Exact Solution to the Equation Without a Calculator sin⁡(sin⁡−1x)=−0.8\sin \left( \sin ^ { - 1 } x \right) = - 0.8sin(sin−1x)=−0.8

Find the Exact Solution to the Equation Without a Calculator $\sin \left( \sin ^ { - 1 } x \right) = - 0.8$