Math, asked by kumarritesh5, 1 year ago

If 9x=π, find the value of cosx cos2x cos4x

Answers

Answered by palu7980

1

9x=π

x=.π/9

x=180/9. π=.180 degrees

x=20

=cosx cos2xcos4x

=cos20. cos40. cos80

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