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## Homework Statement

Determine the equation for the the tangent-to the curve:

y=3 sin 2x - cos 2x

if x=3∏/4

## Homework Equations

So I thought I might get the y?

y=3 sin 2(3∏/4) - cos 2(3∏/4)

y= ~0.25 - ~1 ≈ 0.75

k(?) =

m(?) =

Then what?

Please help :(

## The Attempt at a Solution

The answer is y = -2x + 3∏/2 - 3

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