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polet [3.4K]
2 years ago
15

How do I show the identity of cos(6x) = 2cos^2(3x)-1

Mathematics
1 answer:
notsponge [240]2 years ago
4 0
You are given the function of  identity of cos(6x) = 2cos^2(3x)-1. <span>A sine and cosine function is one of the basic functions encountered in Trigonometry. Sine is equal to the opposite side over hypotenuse whereas the cosine function is equal to the adjacent side over the hypotenuse.</span>

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Determine the range of the function in the table below.
maria [59]
The last one if I'm not mistaking
5 0
2 years ago
If the sphere shown above has a radius of 14 units then what is the approximate volume of the sphere
oksano4ka [1.4K]

Answer:

About 11494.04

Step-by-step explanation:

There is no sphere shown above but I can still get you the answer:

The formula for the volume of a sphere is \frac{4}{3} *π*r³

Putting in the radius, we get:

\frac{4}{3}*π*14³=

\frac{4}{3}*π*2744=

\frac{10976}{3}*π=

3658.66*π≈11494.04

8 0
3 years ago
−6 = x/8+4<br> ILL GIVE BRAINLIEST❤️❤️
Lorico [155]

Answer:

2

Step-by-step explanation:

6x=4+8

6x=12x= 12/6

x=2

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8 0
3 years ago
Let f(x) =(x-3) find the domain of x
m_a_m_a [10]

Answer:

all real numbers

Step-by-step explanation:

The domain of a function is the set of values you can set as x to output an answer. Since you can subtract 3 from any real number, the domain of x-3 is all real numbers.

5 0
3 years ago
Solve 2x - 11 = k for x.
denis23 [38]
2x + -11 = k

Reorder the terms:
-11 + 2x = k

Solving
-11 + 2x = k

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
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Combine like terms: -11 + 11 = 0
0 + 2x = 11 + k
2x = 11 + k

Divide each side by '2'.
x = 5.5 + 0.5k

Simplifying
3 0
3 years ago
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