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Tanzania [10]
2 years ago
7

If cosx=-3/7, find the value for cos4x

Mathematics
1 answer:
charle [14.2K]2 years ago
6 0

Answer:

cos ( 4 x ) = - 479 / 2401

Step-by-step explanation:

:D

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Answer:

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Step-by-step explanation:

Given;

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Mid-point is given by;

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5 0
3 years ago
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Step-by-step explanation:

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