a. Show that f(x) = cos 2x + 6. b. Hence, find the exact value of
Question:
a. Show that f(x) = cos 2x + 6.
b. Hence, find the exact value of ∫0π/4 f(x) dx.
f(x) = 5 sin2 x + 7 cos2 x
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a Show that fx cos 2x 6 We can use the double angle formula to write cos 2x ...View the full answer
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Related Book For 
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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