Math, asked by debojitdas2012, 7 months ago

express as product form : 1+2cos20​

Answers

Answered by PrincessPurvi
1

1 * 2 cos 20

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Answered by jhonridoutt
0

Answer:

4Cos20Cos40

Step-by-step explanation:

2(Cos60+Cos20)=1+2Cos20

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