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Please prove this math... emergency...prove that Left Hand Side = Right Hand Side

Please prove this math... emergency...prove that Left Hand Side = Right Hand Side

Question Image
Grade:12

1 Answers

Utsav Basu
70 Points
3 years ago
Use sin4A + cos4A = 1- 2 sin2A cos2A
 
Thus the equation will reduce to
2 – (sin2(\pi/4))/2 – (sin2(3\pi/4))/2
 
Solving which you wll get 1.5 i.e.  3/2

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