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Find range of y=cos2x+3sinx Find range of y=cos2x+3sinx

Find range of y=cos2x+3sinx 
Find range of y=cos2x+3sinx

Grade:12th pass

1 Answers

Arun
25763 Points
2 years ago
Dear Pratyush
 
y = cos 2x + 3 sinx
 
y = 1 – 2 sin^2 x + 3 sin x
 
 Now You can solve as it is quadratic in sinx

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