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Evaluate the Expression $\sec 90 ^ { \circ }$ A) $\frac { 2 \sqrt { 3 } } { 3 }$

Question 163

Multiple Choice

Evaluate the expression.
- $\sec 90 ^ { \circ }$

A) $\frac { 2 \sqrt { 3 } } { 3 }$
B) 0
C) Undefined
D) 1

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