Question

If sin(alpha)+ sin(beta)= m and cos(alpha) + cos(beta)= n then prove that cos (alpha - beta) = 1÷2{(m^2 + n^2 - 2).​

Answer 1

Answer:

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$\huge{\underline{\underline{\mathtt{\purple{☠Mr.}\green{Hri}\pink{t}\blue{h}\purple{i}\red{k☠}}}}} </p><p>$

Thank you!

Answer 2

Step-by-step explanation:

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity