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1397 x 1397 = ?
Choose the correct option from below list
(1)1951609
(2)1981709
(3)18362619
(4)2031719
(5)None of these
Answer:-(1)1951609
Note:-(1397)2
= (1400 - 3)2
= (1400)2 + (3)2 - (2 x 1400 x 3)
= 1960000 + 9 - 8400
= 1960009 - 8400
= 1951609 | |
Other Important Questions | 53, 53, 40, 40, 27, 27,.....choose the next number | 22, 21, 23, 22, 24, 23, ... | 36, 34, 30, 28, 24, ... | 7, 10, 8, 11, 9, 12, ... | 1397 x 1397 = ? |
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