Let alpha =2tan^-1(1/2)+sin^(-1)3/5 and ...

Let `alpha =2tan^-1(1/2)+sin^(-1)3/5 and beta=sin^-1(12/13)+cos^-1(4/5)+cos^-1(16/63)` be such that`2 sin alpha and cos beta` are roots of the equation `x^2- p x +q=0,` then `(p-q)` is

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