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Dmitry [639]
3 years ago
15

Use the power-reducing formulas to rewrite each of the expressions in terms of the first power of the cosine. Sin^4cos^4

Mathematics
1 answer:
Katen [24]3 years ago
6 0

Answer:

1/128 * (3 - 4cos2x + cos4x)

Step-by-step explanation:

See attachment for steps

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Et aussi surtout : (4-√2)(4+√2)
elena-14-01-66 [18.8K]

Answer:

8

Step-by-step explanation:

J'espère que cela t'aides! si c'est le cas, puis-je avoir un brainliest ?

3 0
2 years ago
If you rolled two dice, what is the probability
Softa [21]

Answer:

2/36 or 1/18 simplified

Step-by-step explanation:

you have all the combinations listed which is good.

probability = number of successful events / number of total events

  • look for the sums that are 11 and count them (there are 2 - 5,6 and 6,5).
  • total the number of all events (36)
  • so you then get the 2/36

there are

5 0
2 years ago
30p questions hurry need your help pleaseeee!!
Ber [7]

Yes she can find the average colour by adding up all the amount of colors by how many colors there are.

6 0
3 years ago
Read 2 more answers
A net and the prism it will form when it is folded are shown below.
Mashcka [7]

Answer:

Option A)724 square centimeters

Step-by-step explanation:

we know that

The surface of the prism is equal to the area of its six rectangular faces

The surface area is equal to

SA=2B+PH

where

B is the area of the base

P is the perimeter of the base

H is the height of the prism

we have

L=12\ cm

W=11\ cm

H=10\ cm

<em>Find the area of the base B</em>

B=LW

B=(12)(11)=132\ cm^{2}

<em>Find the perimeter of the base P</em>

P=2(L+W)

P=2(12+11)=46\ cm

<em>Find the surface area SA</em>

SA=2(132)+(46)(10)=724\ cm^{2}

6 0
3 years ago
Read 2 more answers
Express the complex number in trigonometric form. 5 - 5i
bazaltina [42]

●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●

               Hi my lil bunny!

❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙

Lets do this step by step.

This is the trigonometric form of a complex number where |z| is the modulus and 0 is the angle created on the complex plane.

z = a + bi = |z| (cos ( 0 ) + I sin (0))

The modulus of a complex number is the distance from the origin on the complex plane.

|z| = \sqrt{a^2 + b^2} where z = a + bi

Substitute the actual values of a = -5 and b = -5.

|z| = \sqrt{(-5) ^2 + (-5) ^2}

Now Find |z| .

Raise - 5 to the power of 2.

|z| = \sqrt{25 + (-5) ^2}

Raise - 5 to the power of 2.

|z| = \sqrt{25 + 25}

Add 25 and 25.

|z| = \sqrt{50}

Rewrite 50 as 5^2 . 2 .

|z| = 5\sqrt{2}

Pull terms out from under the radical.

|z| = 5\sqrt{2}

The angle of the point on the complex plane is the inverse tangent of the complex portion over the real portion.

0 = arctan (\frac{-5}{-5} )

Since inverse tangent of  \frac{-5}{-5}  produces an angle in the third quadrant, the value of the angle is \frac{5\pi }{4} .

0 = \frac{5\pi }{4}

Substitute the values of 0 = \frac{5\pi }{4} and |z| = 5\sqrt{2} .

5\sqrt{2} ( cos( \frac{5\pi}{4})  + i sin (\frac{5\pi}{4}))

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Hope this helped you.

Could you maybe give brainliest..?

❀*May*❀

6 0
3 years ago
Read 2 more answers
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