1.

Smallest positive root of the equaiton sqrt(sin ( 1- x)) = sqrt( cos x )

Answer»

`( 7 pi)/( 2) + (1)/(2)`
` ( 7 pi)/( 4) + (2)/(3)`
`( 7 pi)/( 4) + (1)/(2)`
` (7 pi)/( 2) + (2)/(3)`

ANSWER :C


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