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mina [271]
3 years ago
10

Jill can make a key chain in 1 minute(s) 48 seconds. At this rate, which is closest to the amount of time she will need to make

5 key chains?
2 minutes?
1 minutes?
10 minutes?
or 5 minutes?
Mathematics
1 answer:
mezya [45]3 years ago
7 0

Answer:

10 minutes

Step-by-step explanation:

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Verify sin^4x − sin^2x = cos^4x − cos^2x is an identity
Inga [223]

Answer:

<h2>It's an identity</h2>

Step-by-step explanation:

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\text{Used:}\\\\\sin^2x+\cos^2x=1\Rightarrow\left\{\begin{array}{ccc}\cos^2x=1-\sin^2x\\\sin^2x=1-\cos^2x\end{array}\right\Rightarrow\left\{\begin{array}{ccc}-\cos^2x=\sin^2x-1\\-\sin^2x=\cos^2x-1\end{array}\right

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Given

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Description of the sequence

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