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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PREVIOUSExpress the following in exponential form:(i) 6 × 6 × 6 × 6(ii) t × t(iii) b × b × b × b(iv) 5 × 5 × 7 × 7 × 7(v) 2 × 2 × a × a(vi) a × a × c × c × c × c × dNEXTIdentify the greater number, wherever possible, in each of the following.(i) 43 or 34(ii) 53 or 35(iii) 28 or 82(iv) 1002 or 2100(v) 210 or 102
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