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Let t be a ral number satifying 2t ^(2) ...

Let t be a ral number satifying `2t ^(2) -9t ^(2) + 30 -lamda =0` where `t =x + 1/xand lamda in R.`
If the above cubic has three real and sisinct solutions foe x then exhaustive set of value of `lamda` be :

A

`3 lt lamda lt 10`

B

`3 lt lamda lt 30`

C

`lamda =10`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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