Let a = i +4 j +2 k , b =3 i -2 j +7 k and c =2 i - j +4 k . If a vector d satisfies d b = c b and d . a =24,...

Question

Let a = i +4 j +2 k , b =3 i -2 j +7 k and c =2 i - j +4 k . If a vector d satisfies d b = c b and d . a =24, then | d |^2 is equal to

Accepted Answer

(D)

JEE Main 2023 Mathematics question