exam Maths Puzzle Numerical Ability

Use the echelon method to solve equation.
4x - y + 3z 5 -2
3x + 5y - z = 15
-2x + y + 4z = 14

Read Solution (Total 0)

exam Other Question

(10+i)^2 / 4-i

thanks for the help! how would you solve this problem algebracily??

the vectors [8,0] and [3,4] form a parallelogram. find the lengths of its altitudes.