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Find 
(d)/(dy)(3y^(2)-sin y)
Answer:

Find ddy(3y2siny) \frac{d}{d y}\left(3 y^{2}-\sin y\right) \newlineAnswer:

Full solution

Q. Find ddy(3y2siny) \frac{d}{d y}\left(3 y^{2}-\sin y\right) \newlineAnswer:
  1. Apply Differentiation Rules: To find the derivative of the function 3y2sin(y)3y^2 - \sin(y) with respect to yy, we will apply the basic differentiation rules. The power rule for the term 3y23y^2 and the derivative of the sine function for the term sin(y)-\sin(y).
  2. Differentiate 3y23y^2: Differentiate 3y23y^2 with respect to yy. According to the power rule, the derivative of yny^n with respect to yy is ny(n1)n\cdot y^{(n-1)}. Therefore, the derivative of 3y23y^2 is 23y(21)=6y2\cdot 3\cdot y^{(2-1)} = 6y.
  3. Differentiate sin(y)-\sin(y): Differentiate sin(y)-\sin(y) with respect to yy. The derivative of sin(y)\sin(y) with respect to yy is cos(y)\cos(y), so the derivative of sin(y)-\sin(y) is cos(y)-\cos(y).
  4. Combine Derivatives: Combine the derivatives of the two terms to get the derivative of the entire function. The derivative of 3y2sin(y)3y^2 - \sin(y) with respect to yy is 6ycos(y)6y - \cos(y).

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