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I have no idea how to go about this problem. Please help.?

0 votes

1+cosθ+sinθ
___________
1+cosθ-sinθ

trigonometric-identities

asked Dec 6, 2014 in TRIGONOMETRY by anonymous

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1 Answer

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The expression is

Multiply and divide the expression with

The denominator is in the form of then it can be written as

Now we make use of Trigonometric identities ⇒ .

Take out the common factor

Cancel the common terms.

Therefore .

answered Dec 6, 2014 by Lucy Mentor

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