1.

Number of values of `p`for which equation `sin^3x+1+p^3-3psinx=0(p >)`has a root is ________

Answer» Correct Answer - 1
`sin^(3) x+p^(3)+1=3p sin x`
`rArr (sin x p+1) (sin^(2) x+1+p^(2)-sin x-p-p sin x)=0`
therefore, either `sin x+p+1=0rArr p rArr p=-(1+sin x)`
or `sin x =1=p`
Hence, only value of `p(p gt 0)` is possible which is given by `p=1`.


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