If each of `alphabetaa n dgamma` is a positive acute angle such that `sin(alpha+beta-gamma)` `=1/2` , `cos(beta+gamma-alpha)=1/2 and tan(gamma+alpha-beta)=1,` find the values of `alpha,betaa n dgammadot`

Explanation

`sin(α+β−γ)=1/2=sin30^@`


`α+β−γ=30^@` ........(1)


`cos(β+γ−α)=1/2=cos60^@`


`β+γ−α=60^@` ..........(2)


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