Calculus exam Find the derivation of each of the following expression 3x3+2x+3/2x solve in English

English

ScanSolve AI Answer

Answer

9x2+2−32x29x^2 + 2 - \frac{3}{2x^2}

Step-by-step solution

4 steps

To find the derivative of the expression 3x3+2x+32x3x^3 + 2x + \frac{3}{2x}, we will differentiate each term separately using the power rule and the sum rule. First, rewrite the last term to make differentiation easier.

f(x)=3x3+2x+32x−1f(x) = 3x^3 + 2x + \frac{3}{2}x^{-1}
  1. Differentiate the first term, 3x33x^3.

    Using the power rule ddx(axn)=anxn−1\frac{d}{dx}(ax^n) = anx^{n-1}:

    ddx(3x3)=3⋅3x3−1=9x2\frac{d}{dx}(3x^3) = 3 \cdot 3x^{3-1} = 9x^2
  2. Differentiate the second term, $2x$.

    Using the power rule ddx(axn)=anxn−1\frac{d}{dx}(ax^n) = anx^{n-1} (where n=1n=1):

    ddx(2x)=2⋅1x1−1=2x0=2⋅1=2\frac{d}{dx}(2x) = 2 \cdot 1x^{1-1} = 2x^0 = 2 \cdot 1 = 2
  3. Differentiate the third term, 32x−1\frac{3}{2}x^{-1}.

    Using the power rule ddx(axn)=anxn−1\frac{d}{dx}(ax^n) = anx^{n-1}:

    ddx(32x−1)=32⋅(−1)x−1−1=−32x−2\frac{d}{dx}\left(\frac{3}{2}x^{-1}\right) = \frac{3}{2} \cdot (-1)x^{-1-1} = -\frac{3}{2}x^{-2}

    This can also be written as −32x2-\frac{3}{2x^2}.

  4. Combine the derivatives of all terms.

    The derivative of the entire expression is the sum of the derivatives of its individual terms:

    f′(x)=9x2+2−32x2f'(x) = 9x^2 + 2 - \frac{3}{2x^2}

    The derivation of the expression is:

    9x2+2−32x29x^2 + 2 - \frac{3}{2x^2}
Was this helpful?

Try one yourself

A new problem that tests the same skill.

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp