Math, asked by riahabh7714, 1 year ago

2cos2A=X+1/X then the value of 2cos3A

Answers

Answered by Aravagarwal

0

Answer:

30

Step-by-step explanation:

Answered by krishnkantprabhakar1

0

Step-by-step explanation:

2cos2a=x+1/x हो तो 2 cos 3a

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