Find the exact circular function value.
-$$\sec \frac { - 3 \pi } { 4 }$$
A) $\frac { \sqrt { 2 } } { 2 }$
B) $- 2$
C) $- \sqrt { 2 }$
D) $- \frac { 2 \sqrt { 3 } } { 3 }$

Question

Quizplus · Accepted Answer

The secant function is the reciprocal of the cosine function. For $\frac{-3\pi}{4}$, the cosine value is $-\frac{\sqrt{2}}{2}$. Therefore, the secant value, being the reciprocal, is $-\sqrt{2}$.

Find the Exact Circular Function Value sec⁡−3π4\sec \frac { - 3 \pi } { 4 }sec4−3π​

Find the Exact Circular Function Value $\sec \frac { - 3 \pi } { 4 }$