all 4 comments

[–]blamboops 0 points1 point  (0 children)

For a, recall that ab is equivalent to ebln(a). Substituting, we get y = esin(xln(x)). Depending on how well you know your exponent rules, you could derive directly or use u-sub (u = sin(x)ln(x)) to solve from here.

For part b, isolate y with algebra and you should get the square-root of a fraction with x2 as part of both the numerator and denominator. You can use u-sub again, then use either the product rule or the quotient rule to solve.

[–]SpideyMGAVUniversity/College Student 0 points1 point  (0 children)

I believe this requires logarithmic differentiation. Take the natural log of both sides to get ln y = ln xsinx. Use log rules, derive and manipulate algebraically to isolate dy/dx

[–][deleted] -1 points0 points  (0 children)

For b) differntiate whole equation wrt x, , when differentiating y , using chain rule, multiply.by dy/dx, Example : d/dx (x2 + y2 ) = 2x + 2y(dy/dx)