Surds and Indices

Surds and Indices Worksheet-4

1. Given that 10^0.48 = x, 10^0.70 = y and x^z = y², then the value of z is close to:

(a) 1.45               (b) 1.88              (c) 2.9                 (d) 3.7

2. If m and n are whole numbers such that mⁿ = 121, then the value of (m – l)^{n +  1} is:

(a) 1                     (b) 10                  (c) 121                 (d) 1000

Surds and Indices Worksheet-5

1. If abc = 1, then

(a) 0                    (b) 1                    (c)                 (d) ab