Math, asked by datul514, 8 months ago

using identity evaluate each of the following(399)^2

Answers

Answered by challaramakrishna

1

Step-by-step explanation:

hi iiiiiiii hope it's right

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Answered by Anonymous

28

◦•●◉✿ αиѕωєя ✿◉●•◦

Heya mate..!

We can write (399)^2 as.... (400-1)^2

So...

Using identety (a-b) ^2

We get.!

400^2 - 2 (400) (1) + 1^2

=160000 - 800 + 1

= 159201..........(ans...)

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