Math, asked by infamoussoul, 1 year ago

formula of
 \cos(2x)


Answers

Answered by Ezekiel9
1
cos^2 x- sin^2 x= 1-2 sin^2x=2 cos^2x-1=(1-tan^2x)/(1+tan^2x)
Answered by jerri
0
hello
here is your answer..



hope it helps
#jerri
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