int sec^2(x)
The expression “sec^2(x)” represents the square of the secant function of angle x
The expression “sec^2(x)” represents the square of the secant function of angle x. To find a more simplified expression, we can use trigonometric identities.
Recall that sec(x) is the reciprocal of cosine(x). So, we can rewrite the expression as follows:
sec^2(x) = (1/cos(x))^2
To square the reciprocal, we multiply the numerator and denominator by itself:
sec^2(x) = (1^2)/(cos^2(x)) = 1/cos^2(x)
Now, we can simplify further by using the identity cos^2(x) + sin^2(x) = 1. Rearranging this equation, we get cos^2(x) = 1 – sin^2(x). Substituting this into our expression:
sec^2(x) = 1/(1 – sin^2(x))
Applying another trigonometric identity, sin^2(x) + cos^2(x) = 1, we can rewrite the expression as:
sec^2(x) = 1/(cos^2(x)) = 1/(1 – sin^2(x)) = 1/(1 – (1 – cos^2(x))) = 1/(1 – 1 + cos^2(x)) = 1/(cos^2(x))
Therefore, the final simplified expression for sec^2(x) is 1/(cos^2(x)).
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