1 .		Solve the following equation for x, y, and z: x – y + z = –1   –x + y + z = –1   x + 2y – 2z = 5
2 .		Solve the following equation for the two roots of x:   x2 — 16 = 0
3 .		Solve the following equation for the two roots of x:   — x2 + 5x = — 6
4 .		Determine the angle :
5 .		Determine the angle :
6 .		Determine the length of side AB if right angle ABC is similar to right angle A'B'C':
7 .		Using the basic trigonomic functions, determine the length of side AB of the right triangle.
8 .		Using the basic trigonomic functions, determine the length of side AB of the right triangle.
9 .		Using the basic trigonomic functions, determine the length of side AB of the right triangle.
10 .		Determine the angles and and the length of side AB of the triangle. Note that there are two possible answers to this question and we have provided only one of them as an answer.
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