For the graph of a circular function y = f(x), determine whether f(-x) = f(x) or f(-x) = -f(x) is true.
-$$1 - \sin ^ { 2 } \theta$$
A) $\cos \theta$
B) $- \cos ^ { 2 } \theta$
C) $\cot ^ { 2 } \theta$
D) $\cos ^ { 2 } \theta$

Question

Quizplus · Accepted Answer

The given expression $1 - \sin^2\theta$ simplifies to $\cos^2\theta$ using the Pythagorean identity $\sin^2\theta + \cos^2\theta = 1$. This makes choice D correct.

For the Graph of a Circular Function Y = F(x) 1−sin⁡2θ1 - \sin ^ { 2 } \theta1−sin2θ

For the Graph of a Circular Function Y = F(x) $1 - \sin ^ { 2 } \theta$