Q77 of 111 Page 337

How many times of 30 must be added together to get a sum equal to 30⁷?

Number of times 30 should be added = 30⁷ / 30

= 30⁶

To understand the above method,

Take example of 2⁴

2⁴ = 16

But when we add 2 eight times we get 16 [16 / 2].

Find the value of

(a) 2⁵

(b) (-3⁵)

Express the following in exponential form:

(a) 3 × 3 × 3 × a × a × a ×a

(b) a × a × b × b × b × c × c × c × c

Express each of the following numbers using exponential notations:

(a) 1024

(b) 1029

(c)

Identify the greater number, in each of the following:

(a) 2⁶ or 6²

(b) 2⁹ or 9²

How many times of 30 must be added together to get a sum equal to 307?