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If t is a real number satisfying the equ...

If `t` is a real number satisfying the equation `2t^3-9t^2+30-a=0,` then find the values of the parameter `a` for which the equation `x+1/x=t` gives six real and distinct values of `x` .

A

`lamda in (-oo, 3) uu (30, oo)`

B

`lamda in (-oo, -22) uu (10, oo) uu {3}`

C

`lamda in {3,30}`

D

None of these

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The correct Answer is:
B
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  16. Let t be a ral number satifying 2t ^(2) -9t ^(2) + 30 -lamda =0 where ...

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