Complete the sentence so the result is an identity. Let x be any real number.
-$1 - \ldots = \sin ^ { 2 } x$
A) $\cos ^ { 2 } x$
B) $\sec ^ { 2 } x$
C) $\tan ^ { 2 } x$
D) $\cot ^ { 2 } x$

Question

Quizplus · Accepted Answer

The identity $1 - \cos^2 x = \sin^2 x$ is a form of the Pythagorean identity, which states that $\sin^2 x + \cos^2 x = 1$. Rearranging this identity gives $1 - \cos^2 x = \sin^2 x$.

Complete the Sentence So the Result Is an Identity 1−…=sin⁡2x1 - \ldots = \sin ^ { 2 } x1−…=sin2x

Complete the Sentence So the Result Is an Identity $1 - \ldots = \sin ^ { 2 } x$