Rationalise the denominator of
1/underoot7-2
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Answered by
0
Answer:
45414962149615162651418421654189471841
Step-by-step explanation:
Answered by
2
Answer:
firstly, change the sign of the denominator , i.e √7 - √2 will become √7 + 2 , so multiply this term both with numerator and denominator.
Multiply the terms , and we know that (a+b)(a-b) = a² - b² , use this identity for denominator!
solve it more , square root and square will cancel out!
thus , after rationalising we will get :-
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