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What is $3tan^2theta$ in terms of non-exponential trigonometric functions?

1 Answer

Dec 13, 2015

Transform 3tan^2 x

Ans: $(sec x - 1)(sec x + 1)$

Explanation:

Use trig identity: $1 + tan^2 x = sec^2 x$
$tan^2 x = sec^2 x - 1 = (sec x - 1)(sec x + 1)$

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