Math, asked by waghkrishna704, 11 months ago

8cos20°×cos40°×cos80°=1

Answers

Answered by eshikaChowdhury

1

Answer:

cos 20 =0.9396926208

cos 40=0.7660444431

cos 80=0.1736481777

so

8cos20×cos 40 ×cos80

=1

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