Differentiate with respect to x: Differentiate both sides of the equation with respect to x. We have the equation y2cos(x1)=a2. To find dxdy, we need to differentiate both sides of the equation with respect to x. Since a2 is a constant, its derivative is 0.
Apply product rule: Apply the product rule to the left side of the equation.The left side of the equation is a product of y2 and cos(x1). The product rule states that the derivative of a product of two functions is the derivative of the first function times the second function plus the first function times the derivative of the second function.
Differentiate y2: Differentiate y2 with respect to x. The derivative of y2 with respect to x is 2ydxdy, using the chain rule.
Differentiate cos(x1): Differentiate cos(x1) with respect to x. The derivative of cos(x1) with respect to x is sin(x1) multiplied by the derivative of x1, which is −x21, again using the chain rule.
Write down differentiated equation: Write down the differentiated equation.After applying the product rule and differentiating each part, we get:2ydxdycos(x1)−y2sin(x1)(−x21)=0
Solve for dxdy: Solve for dxdy.To solve for dxdy, we need to isolate it on one side of the equation. We can do this by adding y2sin(x1)(x21) to both sides and then dividing by 2ycos(x1).
Simplify to find dxdy: Simplify the equation to find dxdy. dxdy=2ycos(x1)y2sin(x1)(x21) dxdy=2cos(x1)ysin(x1)(x21)
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