Evaluate sec(0)^2

Problem

sec(0)

Solution

1. Identify the trigonometric function and the value of the angle. The expression is the square of the secant of 0 radians.

2. Recall the reciprocal identity for secant.

sec(x)=1/cos(x)

3. Evaluate the cosine of 0

cos(0)=1

4. Substitute the value of the cosine into the secant identity.

sec(0)=1/1=1

5. Square the result to find the final value.

1=1

Final Answer

sec(0)=1

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