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Given cosα = 3/4, with 3π/2 <

/in /by

Given cosα = 3/4, with 3π/2 &lt; α &lt; 2π, and tanβ = -2
with π/2 < β < π. Find the exact values for the following (no decimal approximations). Simplify your answers.

A. Find cot α

B. Find sin(2ß)

C. Find cos(α – ß)

D. Find tan(α/2)

 
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