Using known trigonometric identities, prove the following: a sec 0 cosec 0 = 2 cosec 20 e
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Using known trigonometric identities, prove the following:
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a sec 0 cosec 0 = 2 cosec 20 e sin (x + y) sin(x - y) = cos² y cos²x - n (4+x) - tan (-x) = 2 tan 2x d 1 + 2 cos 20 + cos 40 = 4 cos²0 cos 20 b tan
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a Proving a seccsc 2 csc20 Well start with the lefthand side LHS a seccsc a 1 sincsc Now since csc20 ...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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