find tha value of cos 15π
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Answered by
1
Answer:
In case of Cos..the odd number with pi always give the value -1 and even number with pi always give +1. ... So the value of Cos15 pi= -1. ... If the radii of two circular cylinders are in the ratio3:4 and their heights are in the ratio 6:5.
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Answered by
0
Answer:
-1
Explanation:
cos 15π can be expressed as cos (7π-π)
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