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Find the range of cos(2x) +3sinx? And you= cos 2x+3sinx?

Find the range of cos(2x) +3sinx? 
And you= cos 2x+3sinx? 
 
 

Grade:12th pass

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
576-1675_2.PNG
Aditya
13 Points
11 months ago
Range of cos2x = [-1,1].
Range of 3 sinx = 3×[-1,1] = [-3,3]
On addition minimum value = (-1-3) = -4
Maximum value obtained = (1+3) = 4.
       Range of cos2x + 3sinx[ -4,4].
 

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