# Maths assignment

This is a simple maths assignment and is as follows there are another 3 questions making it 6 in total

Question 1

Find all solutions of the following linear system:

![\begin{displaymath} \begin{aligned} 2x_1 &+ x_2 &&+ x_3 &&-2x_4 &&= 1\\ 3x_1... ...&= {-}2\\ 5x_1 & -x_2 &&+2x_3 &&-8x_4 &&= 3\;. \end{aligned}\end{displaymath}][1]

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##

Question 2

Find all the values of ![$a\in\mathbb{R}$][4] for which the following linear system:

(i)

: has no solution;

(ii)

: has a unique solution;

(iii)

: has infinitely many solutions.

![\begin{displaymath} \begin{aligned} x &+ \phantom{3}y & \phantom{1}+\phantom{2}... ... 2x &+ 3y &\phantom{1}+(a^2+1)z &= a+6\;. \end{aligned}\hfill \end{displaymath}][5]

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[][6]

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## Deliverables

A complete assignment.........with all questions done

## Platform

microsoft word windows xp

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ID do Projeto: #2974832

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