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Simplify to a single trig function with no denominator.
11sec²x - 11

User James DW
by
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1 Answer

3 votes

Answer:

11 tan²x

Explanation:

using the identity

sin²x + cos²x = 1 ( divide through by cos²x )


(sin^2x)/(cos^2x) +
(cos^2x)/(cos^2x) =
(1)/(cos^2x) , that is

tan²x + 1 = sec²x

then

11sec²x - 11

= 11(tan²x + 1) - 11

= 11tan²x + 11 - 11

= 11tan²x

User Aliza
by
8.4k points

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