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Statement -1 the solution of the equati...

Statement -1 the solution of the equation `(sin x)/(cos x + cos 2x)=0` is `x=n pi, n in I`
Statement -2 : The solution of the equation sin x = `sin alpha , alpha in [(-pi)/(2),(pi)/(2)]`
`x={npi+(-1)^(n)alpha,n in I}`

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