Cos(44-A). cos(44+A) + cos (46 -A).cos(46 +A) = cos2A

1 answer:

5 0

Answer:

-0.0777026243 A^5

Step-by-step explanation:

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Cos(44-A). cos(44+A) + cos (46 -A).cos(46 +A) = cos2A​