Evaluate sec(30)
Problem
Solution
Identify the definition of the secant function in terms of the cosine function.
Substitute the given angle of
30 into the expression.
Recall the exact value of
cos(30) from the unit circle or a special right triangle (30−60−90 .
Calculate the reciprocal of the cosine value.
Rationalize the denominator by multiplying the numerator and the denominator by
√(,3)
Final Answer
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