3 years ago

How do u friend someone on brainlest and whaat is 1 +1 help never leaned how to count bc im number 1

Mathematics

2 answers:

Dvinal [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Ne4ueva [31]3 years ago

5 0

Answer:

You go to their profile and under their name right next to where it say's "Thanks" There is a icon of a person with a plus sign. Click that and it will send that person a friend request.

1+1=2 :))

Step-by-step explanation:

You might be interested in

Tính tích phân sau bằng cách dùng tọa độ cực I=∫∫ <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%7Bx%5E%7B2%7D%20%2B

xenn [34]

It sounds like R is the region (in polar coordinates)

R = {(r, θ) : 2 ≤ r ≤ 3 and 0 ≤ θ ≤ π/2}

Then the integral is

$\displaystyle \iint_R\frac{\mathrm dx\,\mathrm dy}{\sqrt{x^2+y^2}} = \int_0^{\pi/2}\int_2^3 \frac{r\,\mathrm dr\,\mathrm d\theta}{\sqrt{r^2}} \\\\ = \int_0^{\pi/2}\int_2^3 \mathrm dr\,\mathrm d\theta \\\\ = \frac\pi2\int_2^3 \mathrm dr \\\\ = \frac\pi2r\bigg|_2^3 = \frac\pi2 (3-2) = \boxed{\frac\pi2}$