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chubhunter [2.5K]
3 years ago
5

Verify the identity. cos 4x + cos 2x = 2 - 2 sin^2(2x) - 2 sin^2 x

Mathematics
1 answer:
Advocard [28]3 years ago
8 0
So are you trying to simplify one side to get it to look like the other?
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What is the length of BC in the right triangle below?
gayaneshka [121]

Hey there! :)

Answer:

C. BC = 39 units.

Step-by-step explanation:

Use the Pythagorean theorem to solve for BC. Let BC = c, AB = a, and AC = b.

c² = a² + b²

c² = 15² + 36²

Square and simplify:

c² = 225 + 1296

c² = 1521

c = √1521

c = 39 units.

Therefore:

BC = 39 units.

5 0
3 years ago
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Zina [86]
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3 0
3 years ago
Need help, please answer correctly for branliest!
Dmitry_Shevchenko [17]

Answer:

68 degrees

Step-by-step explanation:

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Gloria has 4 ¼ gallons of fruit punch to share. Each serving is 1 pint. How many servings does she have to share?
Aloiza [94]

Answer:

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