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vagabundo [1.1K]
3 years ago
11

Prove that cos(2????) = 2cos2(????) − 1 for any real number ????.

Mathematics
1 answer:
Over [174]3 years ago
6 0

Answer:

Sure

Step-by-step explanation:

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Which number produces an rational number when multiplied by 1/5
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Any rational number will satisfy the situation.
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Help me idk how to do this
ElenaW [278]
To do this, you have to plug each x value into the rule.

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So the first y value would be 9.

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3 years ago
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Oduvanchick [21]
1 pint = 20 fl. oz
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The Gilbert family bought airline tickets online. Each ticket cost $167. The Web site charged $19 per ticket, as well as a flat
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X  -  tickets
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