Q. For the following equation, find dxdy.y=7x5+2x4Answer: dxdy=
Identify function: Identify the function to differentiate.We are given the function y=7x5+2x4 and we need to find its derivative with respect to x, which is denoted as dxdy.
Apply power rule: Apply the power rule for differentiation.The power rule states that the derivative of xn with respect to x is n⋅x(n−1). We will apply this rule to each term in the function separately.
Differentiate first term: Differentiate the first term 7x5. Using the power rule, the derivative of 7x5 with respect to x is 5×7x5−1=35x4.
Differentiate second term: Differentiate the second term 2x4. Using the power rule, the derivative of 2x4 with respect to x is 4×2x4−1=8x3.
Combine derivatives: Combine the derivatives of both terms to find the overall derivative. dxdy=35x4+8x3.
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