1.

If alpha, beta, gamma, delta are the smallest positive angles in ascending order of magnitude which have their sines equal to the positive quantity K the value of 4 sin ((alpha)/(2)) + 3 sin ((beta)/(2)) + 2 sin ((gamma)/(2)) + sin ((delta)/(2))=

Answer»

`2 SQRT(1-K)`
`2 sqrt(1+K)`
`2 sqrt(K)`
`sqrt(K + 1)`

Answer :B


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