# Solve Trigonometry - Based Proof

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Question:

a) Prove that tan 15degrees = 2 - sqrt(3).

b) Solve, for 0 </= theta < 360 degrees,

sin (theta + 60 degrees)sin (theta - 60 degrees) = (1 - sqrt(3)) cos^2(theta)

https://brainmass.com/math/trigonometry/solve-trigonometry-based-proof-188806

#### Solution Preview

Solution of part(a)

tan(a - b) = [tan a - tan b]/[1 + (tan a)(tan ...

#### Solution Summary

This solution looks at finding the solution in (a) by rationalizing the function as well as the solution to (b), with step by step calculations provided in an attached Word document.

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