- #1

- 753

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## Homework Statement

If I have the following relation:

tan(2x) = (B/2) / (A - C)

but tan(2x) = sin(2x) / cos(2x)

How do I obtain an expression for sin(x) and cos(x) in terms of the constants, B,A,C only?

## Homework Equations

cos(2x) = 1- 2 sin^2(x)

## The Attempt at a Solution

[/B]

I can't just consider B/2 as the opposite and A-C as the adjacent to find the hypotenuse

**:**

sin(x) = O/H = (B/2)/[B^2/4 +(A-C)^2]^1/2

etc.