1.

Find derivatives of the following functions.sin((1-x^2)/(1 + x^2)).

Answer»

Solution :`y = SIN((1 - x^2)/(1 + x^2)
dy/dx = cos((1 - x^2)/(1 + x^2)). d/dx((1 - x^2)/(1 +x^2))
= cos((1 - x^2)/(1 +x^2)).(-2X(1+x^2)-(1-x^2).2x)/{(1 + x^2)^2
cos((1-x^2)/(1 + x^2)). {-2x(1+x^2)-(1-x^2).2x}/{(1+x^2)^2}`


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