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solve cos2x-(√2+1)(cosx-1/√2)=0 q no 7 in the image :3

solve cos2x-(√2+1)(cosx-1/√2)=0
q no 7 in the image :3

Question Image
Grade:11

2 Answers

Tony Abraham
27 Points
7 years ago
theta = 2n(pi)+(-)pi/4 or theta = 2n(pi)+(-)pi/3
meera
16 Points
7 years ago
can you please show me the steps??

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