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secondary 4 | E Maths
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This is before the integration part. For which trigo indentities do you use to get 1/8 (cos6x + 1) ?
Step by step solution for this preferred thanks
Date Posted: 7 years ago
Views: 658
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done
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clear
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Use the identities "cos^2 (x) + sin^2 (x) =1" and
"cos (2x) = 2 cos^2 (x) +1"
"cos (2x) = 2 cos^2 (x) +1"
Date Posted:
7 years ago
Possible to offer a step-by-step solution? I still can't seem to simplify it using the identities given. thanks
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