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1 . Simplify the following: (a) (10-3)/103 (b) c{(a2)(b-3)(c2)/[a 3/b3]} (c) {(x2)-3}/x3 2. Determine the unknown in the following equations (a) p2 = 4/9 (b) m2 = 12 +4m (c) 5/t = (3t)/75 3. Determine the two unknowns in each set of equations (a) x + y = 15 y - X = 1 (b) p/q = 2 p + q= 12 (c) m1+ m2 = -1 m12 + m22 = 13 4. Draw a right angled triangle where the hypotenuse is R, the shortest side is P and the third side is Q, such that the angle between R and Q is 0. Find : (a) sin 0/cos 0 (b) sin2 0 + cos2 0 (c) 1/cos 0 + tan 0 5 . If 0 = 30, and R is 10, find numerical values for part of question 4