Math, asked by prashantmallick, 1 year ago

4(cos³20+cos³40)=3(cos20+cos40) prove this question

Answers

Answered by Pikaachu

12

Hola

Take the Second Part on the R.H.S to get the desired result ✓✓

I hope you can follow it from here ^^"

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prashantmallick: this is not the correct answer

Pikaachu: It is the Correct One :shrug:

Answered by jitupatiltarhadi39

15

Answer:

Step-by-step explanation:

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