1.

f(x) = (cos x - sinx)/(cos (2x)) , x ne (pi)/(4) is continuous on[ 0, (pi)/(2)] " then " f((pi)/(4)) =

Answer»

`(1)/(SQRT(2))`
`(-1)/(sqrt(2))`
`(1)/(sqrt(3))`
`(-1)/(sqrt(3))`

ANSWER :A


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