Math, asked by jayashree9627, 1 year ago

Evaluate using identities: 991×1009


NikhitaAVS: (1000-9) (1000+9) = (1000-9) square based on (a-b) (a+b)

Answers

Answered by mammu1234
61
Heya here is ur answer ✔✔☺
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991×1009 = (1000-9)(1000+9)

It is in the form of (a+b)(a-b)= a^2-b^2

991×1009= 1000^2-9^2
= 1000000-81
= 999919


THANK YOU

HOPE IT HELPS U☺
Answered by architpanwar364
6

Answer:

Step-by-step explanation:

991×1009 = (1000-9)(1000+9)

It is in the form of (a+b)(a-b)= a^2-b^2

991×1009= 1000^2-9^2

= 1000000-81

= 999919

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