Evaluate the expression.
-$\sec 270 ^ { \circ }$
A) 0
B) -1
C) $\frac { 2 \sqrt { 3 } } { 3 }$
D) Undefined

Name: Evaluate the expression. -$\sec 270 ^ { \circ }$ A) 0 B) -1 C) $\frac { 2 \sqrt { 3 } } { 3 }$ D) Undefined
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Question

Quizplus · Accepted Answer

$\sec 270 ^ { \circ }$ is equivalent to $1/\cos 270 ^ { \circ }$. Since $\cos 270 ^ { \circ } = 0$, and division by zero is undefined, $\sec 270 ^ { \circ }$ is undefined.

Evaluate the Expression sec⁡270∘\sec 270 ^ { \circ }sec270∘ A) 0 B) -1 C)

Evaluate the Expression $\sec 270 ^ { \circ }$ A) 0
B) -1
C)