1.

Let (c cos x)/( 2 cos 2 x - 1) = (b + sin x)/( (cos^(2) x - 3 sin^(2) x)tan x), b in R Equation has solutions if

Answer»

`b in (- infty, (1)/(2))- {-1,0,(1)/(3)}`
`b in (- infty, 1) - {- 1, 0, (1)/(3)}`
`b in R - {-1,0,(1)/(3)}`
`b in (- infty, (1)/(2))`

ANSWER :A


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