Q. 34.7( 104 Votes )

Express each of the following numbers using exponential notation:

(i) 512

(ii) 343

(iii) 729

(iv) 3125

Answer :

(i) 512

We have,


512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2


= 29


(ii) 343

We have,


343 = 7 × 7 × 7


= 73


(iii) 729

We have,


729 = 3 × 3 × 3 × 3 × 3 × 3


= 36


(iv) 3125




We have,


3125 = 5 × 5 × 5 × 5 × 5


= 55

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