Q. Simplify and find the differentiation. y=1+sinx1−sinx
Rewrite Function: Rewrite the function in a form that is easier to differentiate.We have y=1+sinx1−sinx. To differentiate this, it's helpful to rewrite the square root as a power of 21.y=(1+sinx1−sinx)21
Apply Chain Rule: Apply the chain rule to differentiate the function.The chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.Let u=1+sinx1−sinx, then y=u21.We need to find dudy and dxdu and then multiply them together to get dxdy.
Differentiate y with u: Differentiate y with respect to u. Using the power rule, the derivative of u21 with respect to u is 21u−21. dudy=21(1+sinx1−sinx)−21
Differentiate u with x: Differentiate u with respect to x. u=1+sinx1−sinx To differentiate this quotient, we use the quotient rule: v2v′⋅u−u′⋅v, where u=1−sinx and v=1+sinx. dxdu=(1+sinx)2cosx⋅(1+sinx)−(−cosx)⋅(1−sinx) Simplify the numerator: dxdu=(1+sinx)2cosx+sinx⋅cosx+cosx−sinx⋅cosx x0
Multiply for dxdy: Multiply dudy by dxdu to get dxdy. dxdy=dudy×dxdu dxdy=(21)(1+sinx1−sinx)−1/2×((1+sinx)22⋅cosx) Simplify the expression: dxdy=(1+sinx)3/2cosx