Samyukta
Samyukta
24-10-2021
Mathematics
contestada
Rationalise I) 6/√5+√2
ii) 1/8+5√2
Respuesta :
VirαtKσhli
VirαtKσhli
24-10-2021
Given
:
6/√5+2
1/8+5√2
To
find
:
-
The denominator in rationalized form .
Solution
:
-
Using
Identity
:
-
a² - b² = (a+b)(a-b)
Solution
1
:
-
6/√5+2
6(√5-2)/(√5+2)(√5-2)
6(√5-2)/√5²-2²
6(√5-2)/5-4
6
√
5
-
1
2
So
l
ution
2
:
-
1/8+5√2
1(8-5√2)/(8+5√2)(8-5√2)
8-5√2/8²-(5√2)²
8-5√2/64-50
8
-
5
√
2
/
1
4
Answer Link
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