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Find the derivative of the following function.

y=log_(2)(2x^(2)+2x)
Answer: 
y^(')=

Find the derivative of the following function.\newliney=log2(2x2+2x) y=\log _{2}\left(2 x^{2}+2 x\right) \newlineAnswer: y= y^{\prime}=

Full solution

Q. Find the derivative of the following function.\newliney=log2(2x2+2x) y=\log _{2}\left(2 x^{2}+2 x\right) \newlineAnswer: y= y^{\prime}=
  1. Apply Chain Rule: First, we need to apply the chain rule for derivatives, which states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function. The outer function here is log2(u)\log_2(u), and the inner function is u=2x2+2xu = 2x^2 + 2x.
  2. Differentiate log2(u)\log_2(u): To differentiate log2(u)\log_2(u) with respect to uu, we use the formula ddx[log2(u)]=1(uln(2))\frac{d}{dx} [\log_2(u)] = \frac{1}{(u \ln(2))}. This is because the derivative of log base aa of uu is 1(uln(a))\frac{1}{(u \ln(a))}, where ln\ln denotes the natural logarithm.
  3. Find Derivative of Inner Function: Now we need to find the derivative of the inner function u=2x2+2xu = 2x^2 + 2x with respect to xx. Using the power rule, the derivative of x2x^2 is 2x2x, and the derivative of xx is 11. Therefore, the derivative of uu with respect to xx is dudx=2(2x)+2(1)=4x+2\frac{du}{dx} = 2(2x) + 2(1) = 4x + 2.
  4. Combine Results: Combining the results from the previous steps, we get the derivative of yy with respect to xx as y=1(2x2+2xln(2))(4x+2)y' = \frac{1}{(2x^2 + 2x \ln(2))} \cdot (4x + 2).
  5. Simplify Expression: We can simplify the expression by factoring out 22 from the numerator and denominator. This gives us y=2(2x+1)2(2x2+2x)ln(2)=2x+1(2x2+2x)ln(2)y' = \frac{2(2x + 1)}{2(2x^2 + 2x) \ln(2)} = \frac{2x + 1}{(2x^2 + 2x) \ln(2)}.

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