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LekaFEV [45]
2 years ago
12

Pls help I need this now

Mathematics
1 answer:
miv72 [106K]2 years ago
4 0
The answer is A to your question
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Which of the following is NOT a variation of a Pythagorean identity?​
Ipatiy [6.2K]

The expression that is not a variation of the Pythagorean identity is the third option.

<h3>What is the Pythagorean identity?</h3>

The Pythagorean identity can be written as:

sin^2(x) + cos^2(x) = 1

For example, if we subtract cos^2(x) on both sides we get the second option:

sin^2(x) = 1 - cos^2(x)

Which is a variation.

Now, let's divide both sides by cos^2(x).

sin^2(x)/cos^2(x) + cos^2(x)/cos^2(x) = 1/cos^2(x)\\\\tan^2(x) + 1 = sec^2(x)\\\\tan^2(x) - sec^2(x) = -1

Notice that the third expression in the options looks like this one, but the one on the right side is positive. The above expression is in did a variation of the Pythagorean identity, then the one written in the options (with the 1 instead of the -1) is incorrect, meaning that it is not a variation of the Pythagorean identity.

Concluding, the correct option is the third one.

If you want to learn more about the Pythagorean identity, you can read:

brainly.com/question/24287773

3 0
2 years ago
The sample mean is a statistic. True or false​
ruslelena [56]

Answer:

true

Step-by-step explanation:

6 0
2 years ago
The base of a cylinder has a radius of 5 cm. What is its area?
Oksi-84 [34.3K]

Answer:

157

Step-by-step explanation:

formula- 2 x 3.14 x 5 squared

6.28 x 5 squared

6.28 x 25

157

4 0
3 years ago
PLEASE HELP!!!!!<br> will mark brainliest!!!!!
PSYCHO15rus [73]

Answer:

x      y

4     7

5     -1

6     -9

5 0
2 years ago
Read 2 more answers
Factor y 2 + 5y + 6.<br> (y + 1)(y + 6)<br> (y + 2)(y + 3)<br> (y + 2)(y + 4)
serg [7]
<span>y^2 + 5y + 6
=</span><span>(y + 2)(y + 3)

----------------------------------</span>
5 0
3 years ago
Read 2 more answers
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