Math, asked by aaa144, 1 year ago

rationalise the denominator of 2√3+5√7÷√5+√6

Answers

Answered by aRKe09
3

 \frac{(2 \sqrt{3}  + 5 \sqrt{7}) }{ \sqrt{5}  -  \sqrt{6} }  \times  \frac{ \sqrt{5}  +  \sqrt{6} }{ \sqrt{5} +  \sqrt{6}  }  \\  \\  \frac{2 \sqrt{15} + 2 \sqrt{18}  + 5 \sqrt{35} + 5 \sqrt{42} }{5 - 6}  \\  \\  - 2( \sqrt{15}  +  \sqrt{18} ) - 5( \sqrt{35}  +  \sqrt{42} )
Answered by jsaidisha
2

Hi here is the answer

(2√3+5√7)/(√5+√6)

Rationalising denominator is making the denominator as a rational number so we have to multiply and divide the fraction by the conjugate of the denominator.
The denominator is √5+√6
So conjugate will be √5-√6
(2√3+5√7 * √5-√6)/([√5+√6][√5-√6]
2√15+5√35-2√18+5√42 / 5-6
So the final answer when u rationalise is

-[ 2√15+5√35-2√18+5√42]

Can you please mark it as brainliest
I hope you understood...........


jsaidisha: Hey mate u can simplify by taking 2 and 5 common
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