If the position vectors of and are ,

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

If the position vectors of

A, B, C

and

D

are

2\hat{i} + \hat{j}

\hat{i} - 3\hat{j}

3\hat{i} + 2\hat{j}

and

\hat{i} + \lambda\hat{j}

respectively and

AB \parallel CD

, then

\lambda

will be (1) -8 (2) -6 (3) 8 (4) 6

Related theory

Vector Operations
Vectors
Vector Algebra
Addition of vectors

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