# Waecmaths

Title waecmaths question
Question 5

If ${{U}_{n}}=n({{n}^{2}}+1)$ evaluate U5U4

Question 48

Find the number of terms in the Arithmetic Progression (A.P) 2, –9, –20, …. –141

Question 5

The nth term of a sequence is ${{T}_{n}}=5+{{(n-1)}^{2}}$. Evaluate ${{T}_{4}}-{{T}_{6}}$

Question 30

The nth term of the sequence  –2, 4, –8, 16,…. Is given by

Question 44

Find the next three terms of the sequence: 0, 1, 2, 3, 5, 8, ….

Question 39

Find the  nth tem of the sequence 5, 10 , 20, 40, 80,…

Question 5

Find the 7th term of the sequence 2, 5, 10, 17, 26, _, _, _

Question 25

A sequence is given 2 ½ , 5, 7½….. if the nth term is 25. Find n

Question 38

Find the 6th term of the sequence: $\frac{2}{3},\frac{7}{15},\frac{4}{15},\cdot \cdot \cdot$

Question 36

Find the nth term of the sequence 2×3, 4×6, 8×9, 16×12

Question 9

If 6, P and 14 are consecutive terms in an Arithmetic Progression (A.P), find the value of P.

Question 43

The fourth term of an Arithmetic progression (A.P) is 37 and the first term is −20. Find the common difference