How do you deal with 3 simultaneous equations? (Struggling with Q7 of AQA specimen paper 1)
If you need to solve them, then you just plug your way through the algebra to get to the answer.
In this question (Q7) you need to find the value of a constant such that there is no solution to the three equations:
- Run through/check the student understands converting simultaneous equations into a matrix.
- Go over the rules for how the determinant of the matrix relates to the number of solutions, e.g. for no solutions the determinant is zero.
- Help the student get to the answer.
JW
Answered by Joanna W. • Further Mathematics tutor
3793 Views
See similar Further Mathematics A Level tutorsRelated Further Mathematics A Level answers
All answers ▸The function f is defined for x > 0 by f (x) = x^1n x. Obtain an expression for f ′ (x).
Prove by mathematical induction that 2^(2n-1) + 3^(2n-1) is divisible by 5 for all natural numbers n.
A complex number z has argument θ and modulus 1. Show that (z^n)-(z^-n)=2iSin(nθ).
Find the volume of revolution formed by rotating the curve y = sinx 2pie around the x- axis