17.1399 x 1399 = ?
[A] 1687401
[C] 1943211
[B] 1901541
[D] 1957201
Answer : [D]
Explanation :
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(1399 x 1399) = (1399)2 = (1400 - 1)2 = (1400)2 + 12 - 2 x 1400 x 1 |
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| = 1960000 + 1 - 2800 = 1960001 - 2800 = 1957201 |
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Title : Numbers Q17
Description : 17.1399 x 1399 = ? [A] 1687401 [C] 1943211 [B] 1901541 [D] 1957201 Answer : [D] Explanation : (1399 x 1399) = (1399) 2 = (1400 - 1) 2...
Rating : 5
