1.

If `sin^-1(sin 5)gtx^(2)-4x` thenA. `x in 2+sqrt(9-2pi , oo)`B. `x in 2-sqrt(9-2pi),2+sqrt(9-2pi)`C. `xin 2-sqrt(9-2pi)oo)`D. none of these

Answer» We have
`sin^(-1)(sin5)gtx^(2)-4x`
`rarr sin^(-1)sin(5-2pi)gtx^(2)-4x`
`rarr 5-2 pi gt x^(2)-4x`
`rarr x^(2)-4x-5+2pilt0 rarr -sqrt(9-2pi)ltxlt2+sqrt(9-2pi)`


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