If [a+(1//a)]^2-2(a-(1//a)]=12, then whi...

If `[a+(1//a)]^2-2(a-(1//a)]=12`, then which of the following is a value of ‘a'?

A

`-8+ sqrt""3`

B

`-8 -sqrt""3`

C

`-8 + sqrt""5`

D

None of these

Verified by Experts

The correct Answer is:

D

Similar Questions

Explore conceptually related problems

Which of the following is an example of 1,2 -elimation ?

If A,=[[1,0,20,2,12,0,3]] and A^(-1),=pA^(2)+qA+rI_(3) then which of the following is false

If A={1,2,{3,4),{5}}, then test which of the following are true:

If A=[{:(1,2),(2,3),(3,4):}] and B=[{:(1,2),(2,1):}] then Which one of the following is correct ?

If A={1,2,(3,4),5}, then which of the following statements is incorrect?

Suppose X = {1,2,3,4} and R is a relation on X. If R = {(1,1),(2,2),(3,3),(1,2),(2,1),(2,3),(3,2)}, then which one of the following is correct?

Suppose X={1, 2, 3, 4} and R is a relation on X. If R={(1,1),(2,2),(3,3),(1,2),(2,1),(2,3),(3,2)}, then which one of the following is correct?