Question

8. What is Sec2 0 - 1​

Answer 1

Step-by-step explanation:

The secant is the reciprocal of the cosine. The cosine of 0 is well-defined, and is 1. Therefore, the secant of 0 is also 1. And the square of the secant of 0 is 1² = 1.

SECx = 1/Cosx

For x = 0, we have 1/COS0 = 1/1 =1

So SEC^2(0) = 1