Math, asked by bhargavasiddhartha99, 1 year ago

If cos tetha=1,then cos2 tetha=
With sum

Answers

Answered by kanhaiyaavp

1

heyaa,,,
it will be also 1.

bhargavasiddhartha99: Show me sum

kanhaiyaavp: by squaring

kanhaiyaavp: both the side

bhargavasiddhartha99: I did not understand

Answered by ajeshrai

1

cos theta=1. cos0
then ,
theta= 1
now cos 2 theta= cos 2×1
cos 2

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