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Evaluate {(999)sq.-1]

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Evaluate {(999)sq.-1]

Posted by Ankit Kumar 7 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Amrutanshu Sarangi 7 years, 5 months ago

999^2-1=999^2-1^2 =(999^2+1^2)(999^2-1^2) {a^2-b^2=(a+b)(a-b) =999+1×999-1=1000×998=998000

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Posted by Sheikh Alfaz 1 month, 2 weeks ago

CBSE > Class 09 > Mathematics