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16-04-2020
Mathematics

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what basic trig identity would you use to verify that cotxsinx+cosx

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PollyP52 PollyP52

16-04-2020

Answer:

You use cotx = cosx/sinx.

Step-by-step explanation:

I guess you mean cotx sinx = cosx.

You substitute the identity cotx = cosx / sinx:

cotx sinx = (cosx / sin x) * sin x

The sin x ' s cancel to give cosx.

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