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cricket20 [7]
4 years ago
10

Can someone proove it to me thank you for your help

Mathematics
1 answer:
Dovator [93]4 years ago
3 0

\sin(2x + x)  =  \sin(2x)  \cos(x) +  \\  \cos(2x) \sin(x) = 2 \sin(x) { \cos(x) }^{2} \\  +  \sin(x) { \cos(x) }^{2} -  { \sin(x) }^{3}   =  \\ 3 \sin(x)  { \cos(x) }^{2}  -  { \sin(x) }^{3}  =  \\ 3 \sin(x)  - 3 { \sin(x) }^{3}  -  { \sin(x) }^{3}  =  \\ 3 \sin(x)  - 4 { \sin(x) }^{3}
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Read question number 15 and Then give Me The answer please
vovangra [49]

A is right answer

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3 0
3 years ago
-x = -6 <br> please help me
Rasek [7]

Answer:

The answer would be positive 6

Step-by-step explanation:

I know it is -6 because when you solve this you do...

-x = -6

Divide both sides by -6

-x/-6 = -6/-6

the answer would be 6

because a negative divided by a negative is a positive.

Hope this helps have a great day! :)

6 0
3 years ago
Find the value of x. Round to the<br> nearest tenth.<br> 26<br> 12<br> X<br> X =<br> Enter
brilliants [131]

Answer:

322. So this is correct or wrong

5 0
3 years ago
Read 2 more answers
8 and 1/4 + 3 and 5/6
k0ka [10]

Answer:

12 1/12

Step-by-step explanation: so, we have to make the bottom number the same as eachother or we will not be able to add effectively. So the first number that both 4 and 6 go into is 12, as you can see if we count by the numbers to get to the answer

4,8,12

6,12

So, now that we have that part figured out we would then have to multiply the top the same amount as we multiplied the bottom. So 1/4x3 and 5/6x2

So we would multiply both the top and the bottom the same amount.

1/4x3=3/12

5/6x2=10/12

So now that we have that figured out everything else is pretty straight forward.

We would add the whole numbers with eachother and the fractions with eachother.

8+3=11

3/12+10/12=13/12


so we can see that it would equal, 11 and 13/12 or 12 and 1/12

8 0
2 years ago
A number x decreased by 6 is 5.
Sophie [7]
I think the answer is x= 11 but im not sure  <span />
8 0
3 years ago
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