Given that, y^{sinx} = x^{cos^{2}x}, find:frac{dx}{dy}

ka1leE

ka1leE

Answered question

2020-12-01

Given that, ysinx=xcos2x,fd:dxdy

Answer & Explanation

Cullen

Cullen

Skilled2020-12-02Added 89 answers

Use implicit differentiation
Need to know that: (x)y=dydx=y
dydx(3y+2x×ln(y)=y4+x (expand by chain rule/product rule)
3y+2×ln(y)+(2xy)×y=4y3y+1
3y+2xyy4y3y=1lny2 (collect like terms, logarithm power law)
yy3+2xy4y3=1lny2 (factor)
y(3y+2x4y4y)=1ln(y)2 (common divisor for the fraction)
y=yylny23y+2x4y4 Answer
(Try symbolab for computational questions like this)

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