Question Function Find the first partial derivative with respect to l Find the first partial derivative with respect to a ∂l∂r=a Simplify r=laFind the first partial derivative by treating the variable a as a constant and differentiating with respect to l ∂l∂r=∂l∂(la)Use differentiation rule ∂x∂(cf(x))=c×∂x∂(f(x)) ∂l∂r=a×∂l∂(l)Use ∂x∂xn=nxn−1 to find derivative ∂l∂r=a×1Solution ∂l∂r=a Show Solution Solve the equation Solve for a Solve for l Solve for r a=lr Evaluate r=laSwap the sides of the equation la=rDivide both sides lla=lrSolution a=lr Show Solution
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