(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Given that

sin(a) + cos(b) = 3^{1/2}/2 and

sin(a) + sin(b) = 3/2

Find cos(a-b)

2. Relevant equations

3. The attempt at a solution

Can anyone give me some hints?

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# Homework Help: Trigonometry, find cos(a-b)

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