# Solution: Differentiate y = sec⁡(x^2 + 2)

Differentiate y = sec⁡(x^2+2). How to find the derivative of trigonometric functions?

#### Problem Statement: EE Board October 1997

Differentiate y = sec⁡(x^2 + 2)
• A. 2x cos (x2 + 2)
• B. –cos (x2 + 2) cot (x2 + 2)
• C. 2x sec (x2 + 2) tan (x2 + 2)
• D. cos (x2 +2)

The derivative is equal to 2x sec(x^2+2) tan(x^2+2)

Solution:

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