Simplify by rationalising the denominator:
3
5 − √3
+
2
5 + √3
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Given : 3/(5 - √3) + 2/(5 + √3)
To Find : Simplify
Solution:
3/(5 - √3) + 2/(5 + √3)
= {3(5 + √3) + 2(5 - √3)}/((5 - √3)/(5 + √3)
in denominator
(a - b)(a + b) = a² - b²
a = 5 b = √3
= { 15 + 3√3 + 10 - 2√3) /(25 - 3)
= ( 25 + √3)/22
= 25/22 + √3/22
3/(5 - √3) + 2/(5 + √3) = 25/22 + √3/22
Learn more:
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