Ask question

Ask question

All categories

3 years ago

8

WILL MARK THE BRAINIEST!!! LOTS OF POINTS!! HELP NOW

1 answer:

nadya68 [22]3 years ago

7 0

The answer is a) cos(arctan(1)) and the Angle is in quadrant 111

You might be interested in

Pls someone help! I will mark brainliest!!!

devlian [24]

I think it is c or it could be d

6 0

3 years ago

3. Which of the following statement is TRUE?

hodyreva [135]

I’m pretty sure this answer is B

8 0

3 years ago

What is the sum of the interior angles in this shape?

tino4ka555 [31]

Answer:

270

Step-by-step explanation:

90+45+45+110

so that is wat i think ooo

5 0

3 years ago

Read 2 more answers

Solve the following differential equation: (1− 5 y +x) dy/dx +y= 5/x −1 .<br><br> C=

Ganezh [65]

Answer:

$y(1+x)+x-5\ln xy=C$

Step-by-step explanation:

Consider the given differential equation is

$(1-\frac{5}{y}+x)\frac{dy}{dx}+y=\frac{5}{x}-1$

$(1-\frac{5}{y}+x)\frac{dy}{dx}=\frac{5}{x}-1-y$

$(1-\frac{5}{y}+x)dy=(\frac{5}{x}-1-y)dx$

Taking all variables on right sides.

$(1-\frac{5}{y}+x)dy-(\frac{5}{x}-1-y)dx=0$

$(-\frac{5}{x}+1+y)dx+(1-\frac{5}{y}+x)dy=0$

Let as assume,

$M=-\frac{5}{x}+1+y$ and $N=1-\frac{5}{y}+x$

Find partial derivatives $\frac{\partial M}{\partial y}$ and $\frac{\partial N}{\partial x}$

$\frac{\partial M}{\partial y}=1$ and $\frac{\partial N}{\partial x}=1$

Since $\frac{\partial M}{\partial y}=\frac{\partial N}{\partial x}$ , therefore the given differential equation is exact.

The solution of the exact differential equation is

$\int Mdx+\int N(\text{without x)}dy=C$

$\int (-\frac{5}{x}+1+y)dx+\int (1-\frac{5}{y})dy=C$

$yx-5\ln x+x+y-5\ln y=C$

$y+x+xy-5\ln x-5\ln y=C$

$y(1+x)+x-5(\ln x+\ln y)=C$

$y(1+x)+x-5\ln xy=C$

7 0

4 years ago

What is the correlation

RideAnS [48]

Answer:

type=positive

Correlation refers to the degree of correspondence or relationship between two variables.

8 0

3 years ago