Math, asked by devanshupunjabi30200, 6 hours ago

11. Without actual calculations, solve the followings
a. 19^2-18^2
b. 31^2-30^2

Answers

Answered by madhumitanaik1984

1

Answer:

a. 19² - 18²

=》(19 + 18)(19 - 18)

=》37 × 1

=》37

b. 31² - 30²

=》(31 + 30)(31 - 30)

=》61 × 1

=》61

Answered by Anonymous

21

Answer:

2. ooooooooooooooooooooo

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