Answers>Maths>GCSE>Article

Vectors a and b are defined by a = 2i + 3j and b = 4i - 2j, find 3a-b in terms of i and j

3a = 6i + 9j

-b = -4i + 2j

3a-b = (6i-4i) + (9j+2j) = 2i + 11j 

Answered by Pearse M. • Maths tutor

6942 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What should I do if I can’t answer this question?

Answered by

What is 50 as a percentage of 20?

Answered by Luke C.

Derive the quadratic formula form the general quadratic equation

Answered by Muhammad S.

Show that 6sin(60◦) + 5tan(60◦) can be written in the form √k where k is an integer.

Answered by Alistair G.

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemap

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

Cookie Preferences