Given that sin A = - 4/5, and A is an obtuse angle measured in radians, find
Question:
Given that sin A = - 4/5, and A is an obtuse angle measured in radians, find the exact value of:
a. sin (A + B)
b. cos (A − B)
c. sec (A − B)
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a 3 43 ...View the full answer
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Rustia Melrod
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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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