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Sedaia [141]
3 years ago
11

Evaluate the following. d/dx(10^x + e^2)

Mathematics
2 answers:
polet [3.4K]3 years ago
4 0
<span><span>d/<span>dx</span></span><span>[<span><span>10x</span>+<span>e2</span></span>]
</span></span><span>=<span><span><span>d/<span>dx</span></span><span>[<span>10x</span>]</span></span>+<span><span>d/<span>dx</span></span><span>[<span>e2}
</span></span></span></span></span><span>=<span>ln<span>(10)</span></span>⋅<span>10x</span>+0
</span><span>=ln<span>(10)</span>⋅<span>10<span>x</span></span></span>
lianna [129]3 years ago
3 0
\large\begin{array}{l} \textsf{Finding the derivative of}\\\\ \mathsf{f(x)=10^x+e^2}\\\\\\ \textsf{You can differentiate it using basic rules:}\\\\ \mathsf{\dfrac{df}{dx}=\dfrac{d}{dx}\!\left(10^x+e^2\right)}\\\\ \mathsf{\dfrac{df}{dx}=\dfrac{d}{dx}(10^x)+\dfrac{d}{dx}(e^2)}\\\\ \mathsf{\dfrac{df}{dx}=10^x\cdot \ell n\,10+0\qquad\quad\textsf{(since }e^2\textsf{ is a constant)}}\\\\\\ \therefore~~\boxed{\begin{array}{l} \begin{array}{c}\mathsf{\dfrac{df}{dx}=10^x\,\ell n\,10} \end{array} \end{array}}\qquad\checkmark \end{array}


<span>If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2154801</span>


\large\textsf{I hope it helps.}


Tags: <em>derivative function evaluate sum exponential constant basic rule differentiation differential calculus</em>

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3 years ago
Express the integral as a limit of Riemann sums. Do not evaluate the limit. (Use the right endpoints of each subinterval as your
Darina [25.2K]

Answer:

Given definite  integral as a limit of Riemann sums is:

\lim_{n \to \infty} \sum^{n} _{i=1}3[\frac{9}{n^{3}}i^{3}+\frac{36}{n^{2}}i^{2}+\frac{97}{2n}i+22]

Step-by-step explanation:

Given definite integral is:

\int\limits^7_4 {\frac{x}{2}+x^{3}} \, dx \\f(x)=\frac{x}{2}+x^{3}---(1)\\\Delta x=\frac{b-a}{n}\\\\\Delta x=\frac{7-4}{n}=\frac{3}{n}\\\\x_{i}=a+\Delta xi\\a= Lower Limit=4\\\implies x_{i}=4+\frac{3}{n}i---(2)\\\\then\\f(x_{i})=\frac{x_{i}}{2}+x_{i}^{3}

Substituting (2) in above

f(x_{i})=\frac{1}{2}(4+\frac{3}{n}i)+(4+\frac{3}{n}i)^{3}\\\\f(x_{i})=(2+\frac{3}{2n}i)+(64+\frac{27}{n^{3}}i^{3}+3(16)\frac{3}{n}i+3(4)\frac{9}{n^{2}}i^{2})\\\\f(x_{i})=\frac{27}{n^{3}}i^{3}+\frac{108}{n^{2}}i^{2}+\frac{3}{2n}i+\frac{144}{n}i+66\\\\f(x_{i})=\frac{27}{n^{3}}i^{3}+\frac{108}{n^{2}}i^{2}+\frac{291}{2n}i+66\\\\f(x_{i})=3[\frac{9}{n^{3}}i^{3}+\frac{36}{n^{2}}i^{2}+\frac{97}{2n}i+22]

Riemann sum is:

= \lim_{n \to \infty} \sum^{n} _{i=1}3[\frac{9}{n^{3}}i^{3}+\frac{36}{n^{2}}i^{2}+\frac{97}{2n}i+22]

4 0
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Alecsey [184]

Answer:

The solution of the system of the equation is (2, 2)

Step-by-step explanation:

Let us solve the system of equations

∵ 3x + y = 8 ⇒ (1)

∵ 3x - y = 4 ⇒ (2)

→ Add equations (1) and (2) to eliminate y

∴ (3x + 3x) + (y + -y) = (8 + 4)

∴ 6x + 0 = 12

∴ 6x = 12

→ Divide both sides by 6 to find x

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→ Substitute the value of x in equation (1) to find y

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→ Subtract 6 from both sides

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∴ y = 2

∴ The solution of the system of the equation is (2, 2)

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