Math, asked by aman183, 1 year ago

Rationalise the denominator of 1\underroot 3-under root 2

Answers

Answered by S321
3
                                                       hii :)
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here 
          1            =             1         ×        √3+√2 
      √3-√2                   √3-√2                   √3+√2 

=√3+√2       (using a²-b²= (a+b)(a-B)
  3-2

√3+√2 
    1
Answered by zerodown1024
2
Rationalising 1/(✓3-✓2) →

1/(✓3-✓2) × (✓3+✓2)/(✓3+✓2)

= (✓3+✓2)/(✓3)²-(✓2)²

( by identity → (a-b)(a+b) = a²-b²)

= (✓3+✓2)/(3-2)

= (✓3+✓2)/1

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