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Masja [62]
2 years ago
13

Verify identity :

s%20%7B%7D%5E%7B2%7D%20%282%20%5Calpha%20%29%20%20%3D%201" id="TexFormula1" title="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" alt="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
ruslelena [56]2 years ago
7 0

Answer:

what is this? math or physics?

Step-by-step explanation:

You might be interested in
Dolve the equation <br> 11q-6=3q+8q
Amanda [17]

Answer:

no solution

Step-by-step explanation:

Simplifying

11q + -6 = 3q + 8q

Reorder the terms:

-6 + 11q = 3q + 8q

Combine like terms: 3q + 8q = 11q

-6 + 11q = 11q

Add '-11q' to each side of the equation.

-6 + 11q + -11q = 11q + -11q

Combine like terms: 11q + -11q = 0

-6 + 0 = 11q + -11q

-6 = 11q + -11q

Combine like terms: 11q + -11q = 0

-6 = 0

Solving

-6 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

6 0
4 years ago
Sammy wants to buy a new video game that cost 41.95 he is saving 2.25 everyday. How many days did it take for him to save enough
vodka [1.7K]

Answer:

19 days

Step-by-step explanation:

The first day he saves 2.25.

The second day he has saved 2.25 + 2.25 or 2.25(2).

The third day he has saved 2.25 + 2.25 + 2.25 or 2.25(3)

This continues for x number of days so 2.25x.

If the video game costs 41.95 then set equal to 2.25x and solve.

2.25x = 41.95

x = 18.64

This rounds to 19.

5 0
3 years ago
Which of the following best defines 2 to the power of 2 over 3 ?
AURORKA [14]
It is the cube root of 4.
7 0
4 years ago
38 plus 10 .......................................................................
Tanzania [10]
48 ..? Uhhh wait why couldn’t u use a calculator though on your phone or—
3 0
3 years ago
The table shows the cost of several items at a
Alex_Xolod [135]

Answer:

The answer is $10.50

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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