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How do I do the dot product with vectors?

You multiply the terms of each vector that have the same unit vector (e.g. i, j, k). For example, you multiply the i terms in the first vector by the i terms in the second vector. When you've multiplied them...
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Answered by Philip C. • Maths tutor
4387 Views

Can you run through the quadratic equation(including the sketch and algebra).

A quadratic equation of the form ax^2+bx+c can be solved by factorizing the quadratic equation but before that you must check that b^2-4ac>0 so that the solution is in real numbers and not in complex numb...
HI
Answered by Hamza I. • Maths tutor
4563 Views

Do you have any tips for revising for my GCSE Maths Exam?

Revising for a Maths exam can be challenging, especially if you find yourself struggling to understand a particular topic. One thing I would strongly recommend, from having reaped the benefits of it myself, ...
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Answered by Ross H. • Maths tutor
4661 Views

Rationalise 1/(√7) ?

1/(√7) x(√7)/(√7) =(√7)/7
HJ
Answered by Harkeran J. • Maths tutor
10367 Views

How do I solve simultaneous equations given a linear and a quadratic equation?

Let's use the following example: y - x = 3 y^2 + x^2 = 29 . Firstly, the second equation is the quadratic equation because it has a y-squared term. The first equation is linear because it doesn't have any sq...
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Answered by Erica H. • Maths tutor
5610 Views