Use the fundamental identities to simplify the expression.
-$\cos x ( \csc x - \sec x ) - \cot x$
A) $- 1$
B) $\cos ^ { 2 } x - \tan ^ { 2 } x$
C) 0
D) 1

Question

Quizplus · Accepted Answer

The expression simplifies to $-1$ by substituting the fundamental trigonometric identities: $\csc x = \frac{1}{\sin x}$, $\sec x = \frac{1}{\cos x}$, and $\cot x = \frac{\cos x}{\sin x}$, and then simplifying the expression.

Use the Fundamental Identities to Simplify the Expression cos⁡x(csc⁡x−sec⁡x)−cot⁡x\cos x ( \csc x - \sec x ) - \cot xcosx(cscx−secx)−cotx

Use the Fundamental Identities to Simplify the Expression $\cos x ( \csc x - \sec x ) - \cot x$