book
Maths Puzzle
Numerical Ability
System of Equations with 3 variablies
4x – 5y – 5z = –24
–x – y + 3z = 13
5x + y + 4z = 11
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book Other Question
Sum the polynomials 2x^2 - 3x - 4, 2x - 5 and 3x^3 + 2x^2 - 6.
Express the following as a complex number in the form a + ib:
The complex conjugate of i4n-3</sup>, with n Î</font> Z
Please show you working out, and thank you in advance for your help