Vectors and form a parallelogram of area

MATHEMATICS · Single correct · A Level · Mathematics · Vectors · Vectors

Problem

Vectors

\vec{a}=(t,1,0)

and

\vec{b}=(1,t,0)

form a parallelogram of area

15

. The positive integer value of

t

is: (a)

6

(b)

4

(c)

8

(d)

3