How do you find the angle between two vectors?

Using cosine rule a.b = |a||b|cos(theta) and the example vectors a = (1,2,3) and b = (3,2,1),First explain why the cosine rule exists, use a geometric proof of the cosine rule. Show the magintude of a=b=root(14) and a.b = 10, show cos(theta) = 5/7

OB
Answered by OWEN B. Maths tutor

3016 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Let f(x)=x^3-6x+3. i)Differentiate f(x) to find dy/dx. ii) Given that dy/dx = 12, find the value of x.


Where z is a complex number, what is the cartesian form of |Z-2+3i| = 1?


Solve 2sin2θ = 1 + cos2θ for 0° ≤ θ ≤ 180°


Find D when 8x^3-12x^2-2x+D is divided by 2x+1 when the remainder is -2


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences