Lesson: Chapter - 4

Multiplication by a Scalar

Multiplication is like repeated addition. Multiplying 4 by 3 means adding four three times:3 × 4 = 4 + 4 + 4 = 12. The multiplication of a vector times a scalar works in the same way. Multiplying the vector A by the positive scalar c is equivalent to adding together c copies of the vector A. Thus 3A = A + A + A . Multiplying a vector by a scalar will get you a vector with the same direction, but different magnitude, as the original.

The result of multiplying A by c is a vector in the same direction as A, with a magnitude of c × A.

If c is negative, then the direction of A is reversed by scalar multiplication.

Back Next

Next to display next topic in the chapter.

Practice Questions

Video Lessons and 10 Fully Explained Grand Tests

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

SAT Reasoning GRE General GMAT Test
More for You
MCQ with question Explanations Scholarships and Financial Aid

Number Series

How to crack Number Series section of the test

Analytical Reasoning

Learn how to deal Analytical Reasoning

Chemistry for Test Preparation

Lessons with Practice questions -MCQs for Chemistry for Test preparation

All in this Category

You may be interested in

Colleges in Dera ismail khan

Find major schools in your location ...

Superior College Of Science - Hydrabad

A famous college in Hydrabad is Sup ...

Admissions News and Info

Have current admission news and inf ...

Interview Call Winning Resume

Learn how to write Interview Call W ...

PAF - Cadet Wing

Join Pakistan Air Force as a Cadet. ...

GRE Computer Science

Find all about GRE Computer Science ...

NED Engineering Degrees

NED University of Engineering and t ...

PIFD Pakistan Institute of Fashion and Design

A big name in Fashion and Design is ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA