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

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 }sec43π​

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