A) 2
B) 3
C) 4
D) 5
Correct Answer: D
Solution :
We have, \[3\cos \,x-4\sin x\] \[\therefore \] Maximum value is \[\sqrt{{{a}^{2}}+{{b}^{2}}}\] where \[a=3\] and \[b=4\] \[\therefore \] Maximum value \[=\sqrt{{{3}^{2}}+{{4}^{2}}}\] \[=\sqrt{9+16}=\sqrt{25}\] = 5You need to login to perform this action.
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