(i) 512We have, 512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 29 (ii) 343We have, 343 = 7 × 7 × 7 = 73 (iii) 729We have, 729 = 3 × 3 × 3 × 3 × 3 × 3 = 36 (iv) 3125We have, 3125 = 5 × 5 × 5 × 5 × 5 = 55

Q. 34.7( 104 Votes )

Express each of t

Class 7th NCERT Mathematics 13. Exponents and Powers

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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