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Multiple Angle Question from trigonometry Cos^2A+Sin^2A.Cos2B= Cos^2B+Sin^2B.Cos2A. prove . ​

Multiple Angle Question from trigonometry Cos^2A+Sin^2A.Cos2B= Cos^2B+Sin^2B.Cos2A. prove . ​
asked 51.5k views
4 votes
Multiple Angle Question from trigonometry

Cos^2A+Sin^2A.Cos2B= Cos^2B+Sin^2B.Cos2A. prove .



​

asked
User RileyE
by
7.9k points

1 Answer

4 votes

Answer:

cos

2

(A)+sin

2

(A)⋅cos(2B)=cos

2

(B)+sin

2

(B)⋅cos(2A)

Explanation:

answered
User TwoThe
by
8.3k points
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