Math, asked by abinai127venkat, 3 months ago

if cos a =1/3 find cos3a

Answers

Answered by rakheeverma25

0

Answer:

1

Step-by-step explanation:

cos a=1/3 then,

cos3a=1

Answered by keshavbandoola

2

Step-by-step explanation:

cos a = 1/3

Then, cos 3a = 1

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