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# Interesting problem my friend had for me

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Consider the following points (a,4/5) and (b,4/5) on the graph of $$y = \cos(x)$$ and (a,c) and (b,d) on the graph of $$y = \cos(x + \pi/6)$$.

Furthermore, -pi/2

Jan 19, 2022
edited by ImDecentAtMath  Jan 19, 2022
edited by ImDecentAtMath  Jan 19, 2022

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What is the question?

Jan 19, 2022
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The question is what is 10c and 10d.

ImDecentAtMath  Jan 19, 2022
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What has -pi/2 got to do with anything.

Please put the question altogether properly.

Melody  Jan 19, 2022
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Sorry Melody, this was the problem that I was talking about which wasn't letting me type after the -pi/2. The thing should say "Furthermore, -pi/2

ImDecentAtMath  Jan 19, 2022