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If y=cos^(-1)sqrt((sqrt(1+x^2)+1)/(2sq...

If `y=cos^(-1)sqrt((sqrt(1+x^2)+1)/(2sqrt(1+x^2))),t h e n(dy)/(dx)` is equal to (a)`1/(2(1+x^2)),x in R` (b) `1/(2(1+x^2)),x >0` (c) `(-1)/(2(1+x^2)),x<0` (d) `1/(2(1+x^2)),x<0`

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CENGAGE PUBLICATION-CONTINUITY AND DIFFERENTIABILITY-All Questions
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