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If intsqrt(cos e cx+1)dx=kfog(x)+c ,w h...

If `intsqrt(cos e cx+1)dx=kfog(x)+c ,w h e r ek` is a real constant, then (a).`k=-2,f(x)=cot^(-1)x ,g(x)=sqrt(cos e cx-1)` (b) `k=-2,f(x)=tan^(-1)x ,g(x)=sqrt(cos e cx-1)` (c) `k=2,f(x)=tan^(-1)xg(x)=(cotx)/(sqrt(cos e cx-1))` (d) `k=2,f(x)=cot^(-1)xg(x)=(cotx)/(sqrt(cos e cx-1))`

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