OpenStax, Algebra and Trigonometry 2e §9.4 Sum-to-Product and Product-to-Sum Formulas · Exercise 52 · Trigonometry · Compound & multiple angles

Sum-to-Product and Product-to-Sum Formulas · Exercise 52

Simplify the expression to one term, then graph the original function and your simplified version to verify they are identical.

$\frac{cos ( 5 x ) + cos ( 3 x )}{s in ( 5 x ) + s in ( 3 x )}$

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §9.4 Sum-to-Product and Product-to-Sum Formulas · Exercise 52

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.