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3 years ago

6

which pair of ratios is equivalent 8:32 and 16:64 or 52:56 and 17:19 or 34:40 and 16:20 or 6:8 and 16:12 help immediately

1 answer:

choli [55]3 years ago

6 0

As it a lowest one so you will have to double it It is 16:64

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9966 [12]

Solution:

Given;

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Using the identities;

Thus;

$\begin{gathered} \cos\frac{\pi}{2}\cos\frac{\pi}{3}+\sin\frac{\pi}{2}\sin\frac{\pi}{3}=\cos(\frac{\pi}{2}-\frac{\pi}{3}) \\ \\ \cos\frac{\pi}{2}\cos\frac{\pi}{3}+\sin\frac{\pi}{2}\sin\frac{\pi}{3}=\cos(\frac{\pi}{6}) \end{gathered}$

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