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x^2 + 4 + 3 cos(ax+b) = 2x has atleast o...

` x^2 + 4 + 3 cos(ax+b) = 2x` has atleast on solution then the value of a+b is :

A

`5pi`

B

`3pi`

C

`2pi`

D

`pi`

Text Solution

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The correct Answer is:
B, D
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ARIHANT MATHS-FUNCTIONS-Exercise (Questions Asked In Previous 13 Years Exam)
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  19. If F :[1,oo)->[2,oo) is given by f(x)=x+1/x ,t h e n \ f^(-1)(x) equal...

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