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The function f(x)=cosx-2lambda x is mono...

The function `f(x)=cosx-2lambda` x is monotonicallly decreasing when

A

`lambdagt(1)/(2)`

B

`lambdalt(1)/(2)`

C

`lambdalt2`

D

`lambdagt2`

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The correct Answer is:
A
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AAKASH SERIES-MAXIMA AND MINIMA -PRACTICE SHEET (EXERCISE -I) (LEVEL -I) (STRAIGHT OBJECTIVE TYPE QUESTIONS)
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