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nata0808 [166]
3 years ago
10

If (x – 2k) is a factor of f(x), which of the following must be true? f(2k) = 0 f(–2k) = 0 A root of f(x) is x = –2k. A y interc

ept of f(x) is x = 2k.
Mathematics
1 answer:
Ronch [10]3 years ago
6 0

Answer:

f(2k0=0

Step-by-step explanation:

answer a

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Which of the following is NOT a variation of a Pythagorean identity?​
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The expression that is not a variation of the Pythagorean identity is the third option.

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The Pythagorean identity can be written as:

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

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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

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Step-by-step explanation:

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