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2 years ago

Ayuda 7×9÷2=note : btw how to get rid of this ad ?

Mathematics

2 answers:

liq [111]2 years ago

7 0

Answer:

7×9÷2

=63÷2

=31.5

sorry dear I don't know about that

JulijaS [17]2 years ago

5 0

Step-by-step explanation:

7×9÷2

By using the rule of BODMAS , we get

7×9÷2

7×4.5

31.5

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Take the integral:

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$\large\begin{array}{l} \textsf{Substitute}\\\\ \mathsf{2x-1=u\quad\Rightarrow\quad 2\,dx=du}\\\\\\ \textsf{so (i) becomes}\\\\ =\mathsf{\displaystyle\frac{1}{2}\int\!3^u\,du}\\\\ =\mathsf{\dfrac{1}{2}\cdot \dfrac{1}{\ell n\,3}\,3^u+C}\\\\ =\mathsf{\dfrac{1}{2\,\ell n\,3}\,3^{2x-1}+C} \end{array}$

$\large\begin{array}{l} \boxed{\begin{array}{c}\mathsf{\displaystyle\int\!3^{2x-1}\,dx=\frac{1}{2\,\ell n\,3}\,3^{2x-1}+C} \end{array}}\qquad\checkmark \end{array}$

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$\large\textsf{I hope it helps. :-)}$


Tags: integrate indefinite integral substitution exponential base logarithm log ln composite integral calculus

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3 years ago

One number is 10 times as large as another, and their difference is 81. Find the numbers.

marysya [2.9K]

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2 years ago

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Step-by-step explanation:

Let's solve your equation step-by-step.

n−2=10n+42

Step 1: Subtract 10n from both sides.

n−2−10n=10n+42−10n

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Step 2: Add 2 to both sides.

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Ayuda 7×9÷2=note : btw how to get rid of this ad ?​

Ayuda 7×9÷2=note : btw how to get rid of this ad ?