Find the exact value of the expression.
-$\sec 240 ^ { \circ }$
A) 2
B) $- \frac { 2 \sqrt { 3 } } { 3 }$
C) $- 2$
D) $\frac { 2 \sqrt { 3 } } { 3 }$

Name: Find the exact value of the expression. -$\sec 240 ^ { \circ }$ A) 2 B) $- \frac { 2 \sqrt { 3 } } { 3 }$ C) $- 2$ D) $\frac { 2 \sqrt { 3 } } { 3 }$
Brand: Quizplus
Rating: 4.9 (43 reviews)

Question

Quizplus · Accepted Answer

$\sec 240^\circ = \frac{1}{\cos 240^\circ}$. Since $\cos 240^\circ = -\frac{1}{2}$, $\sec 240^\circ = -2$.

Find the Exact Value of the Expression sec⁡240∘\sec 240 ^ { \circ }sec240∘

Find the Exact Value of the Expression $\sec 240 ^ { \circ }$