Let Z, a = i + j - k and b =3 i - j +2 k . Let c be a vector such that ( a + b ) c = 0 , a . c =-17 and b . c...

Question

Let Z, a = i + j - k and b =3 i - j +2 k . Let c be a vector such that ( a + b ) c = 0 , a . c =-17 and b . c =-20. Then | c ( i + j + k )|^2 is equal to

Accepted Answer

(A)

JEE Main 2023 Mathematics question

Solution