Question

Multiplication of vector \(\vec{a}\) and scalar λ is denoted as ______

(a) λ\(\vec{a}\)

(b) \(\vec{a}\)

(c) λ

(d) 0

I had been asked this question in quiz.

My doubt is from Multiplication of a Vector by a Scalar in portion Vector Algebra of Mathematics – Class 12

Answer 1

The correct answer is (a) λ\(\vec{a}\)

The best explanation: Multiplication of vector \(\vec{a}\) and scalar λ is denoted as λ\(\vec{a}\), as \(\vec{a}\) is the original vector. λ is the scalar which can have any integer value which is to be multiplied to the given vector\(\vec{a}\), whereas 0 can only be the answer if the scalar λ = 0.