- #1

#### 3dsmax

## Homework Statement

1. DIRECTIONS: Use half-angle formulas to simplify the expression.

negative >>- *all square root*(1+cos4x/1-cos4x)

2. Verify the identity.

(sinx +/- siny)/(sinx + cosy) = Tan {(x +/- y)/(2)}

## Homework Equations

1. All half angle formulas.

2. Trig formulas. there is a bunch

## The Attempt at a Solution

1. i don't think its even possible

2. i don't see how this one is possible either

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