Q. For the following equation, find dxdy.y=−5x5+5x3+2xAnswer: dxdy=
Identify Function: Identify the function to differentiate.The function given is y=−5x5+5x3+2x. We need to find the derivative of this function with respect to x, which is denoted as dxdy.
Apply Power Rule: Apply the power rule to each term of the function.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 of the function separately.
Differentiate First Term: Differentiate the first term −5x5. Using the power rule, the derivative of −5x5 with respect to x is −5×5x5−1=−25x4.
Differentiate Second Term: Differentiate the second term 5x3. Using the power rule, the derivative of 5x3 with respect to x is 5×3x3−1=15x2.
Differentiate Third Term: Differentiate the third term 2x. Using the power rule, the derivative of 2x with respect to x is 2×1x1−1=2x0=2.
Combine Derivatives: Combine the derivatives of all terms to find (dxdy).dxdy=−25x4+15x2+2.