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The number of distinct real values of la...

The number of distinct real values of `lambda`, for which the vectors `-lambda^(2)hat(i)+hat(j)+hat(k), hat(i)-lambda^(2)hat(j)+hat(k) and hat(i)+hat(j)-lambda^(2)hat(k)` are coplanar, is

A

exactly three values of `lambda`

B

exactly two value of `lambda`

C

exactly one values of `lambda`

D

all values of `lambda`

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The correct Answer is:
B
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