1. The value of 999x 999 is-
(1) 990809
(2) 998996
(3) 999824 (4) 998999
SSC Graduation Level (PT), 2003
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Answer:
=(1000-1)^2
=1000^2-2 (1000×1)+1^2
=1000000-2000+2
=998001
lata1692:
why did u add +2
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