Math, asked by aadeshyadav7, 1 year ago

rationalise the denominator of 5√3-4√2÷4√3+3√2

Answers

Answered by Nayana665
22
Couldn't write it sorry
I just tried it maybe the answer is wrong
So i recommend u check it first. :)
Attachments:

aadeshyadav7: np
aadeshyadav7: thx for ur efort
Answered by Panzer786
42
Hiii friend,

5✓3-4✓2/4✓3+3✓2

Rationalizing the denominator 4✓3+3✓2

=>. 5✓3-4✓2/4✓3+3✓2 × 4✓3-3✓2/4✓3-3✓2


we know that,


(A+B)(A-B) = A²-B²

So,

=> (5✓3-4✓2)(4✓3-3✓2)/(4✓3+3✓2)(4✓3-3✓2)

=> 5✓3(4✓3-3✓2)-4✓2(4✓3-3✓2)/(4✓3)² - (3✓2)²

=> 20 × 3 - 15✓6 - 16✓6 + 12 × 2 / 48 - 18

=> 60 - 31✓6 + 24/30

=> 84-31✓6/30

HOPE IT WILL HELP YOU..... :-)
Similar questions