Asequence {un) is given by the recurrence relation anti un+1 = un + att for n= 1,2,3, and the initial term ui = 3. (a) showing your working, use the recurrence relation to compute un for n = 2,3,4,5. (b) give a proof by induction to show that un= 2 - (n + 2)2-" for all n 2 1.

Suppose a triangle has two sides of length 32 and 35, and that the angle between these two sides is 120°. which equation should you solve to find the length of the third side of the triangle?

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Askateboard ramp is in the shape of a right triangle what is the height of the ramp