Question

What is the value of |P ×Q∣ if P =3i^+j^+2k^ and Q =2i^−2j^+4k^?

Answer 1

Answer:

If the points whose position vectors are 3i−2j−k,2i+3j−4k,−i+j+2k and 4i+5j+λk lie on a plane then λ is equal to (A) −14617 (B) 14617 (C) −17146 (D) 17146 the answer is (a)

Answer 2

8

Explanation:

answer is simple we just have to take their cross product