2 years ago

What is

Mathematics

1 answer:

Marina86 [1]2 years ago

4 0

If you multiply
63,178 by 2,741 you get a result of
173,170,898

You might be interested in

Alex originally paid $5200 for her car 1 year ago. The value of her car now is $4,420. What is

Vladimir79 [104]

Answer:

15%

Step-by-step explanation:

3 0

2 years ago

Can somebody help me with this

eimsori [14]

Answer:

If AB and CD are perpendicular, (slope of AB) x (slope of CD) = -1

9/a = -1

a = -9

3 0

2 years ago

Read 2 more answers

A theatre has 1,024 seats. There will be 92 events at the theatre this season. If each seat is filled for each event, how many p

Sloan [31]

Your answer would be 94, 208

3 0

3 years ago

Which detail is most important to include in a summary of

Kryger [21]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

How do you integrate arctan(x dx? i think that if you simplify the integral you get:?

Temka [501]

Integration by parts will help here. Letting $u=\arctan x$ and $\mathrm dv=\mathrm dx$ , you end up with $\mathrm du=\dfrac{\mathrm dx}{1+x^2}$ and $v=x$ . Now

$\displaystyle\int\arctan x\,\mathrm dx=uv-\int v\,\mathrm du$
$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\int\frac x{1+x^2}\,\mathrm dx$

For the remaining integral, setting $y=1+x^2$ gives $\dfrac{\mathrm dy}2=x\,\mathrm dx$ , so

$\displaystyle\int\frac x{1+x^2}\,\mathrm dx=\frac12\int\frac{\mathrm dy}y=\frac12\ln|y|+C=\frac12\ln(1+x^2)+C$

Putting everything together, you end up with

$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\frac12\ln(1+x^2)+C$

6 0

2 years ago