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Rationalisation of denominator. Class 9. If both a and b are rational numbers, then find the values

Rationalisation of denominator. Class 9. If both a and b are rational numbers, then find the values of a and b in each of the following cases.
(i) if 5 +2√3 / 7 + 4√3 = a + b√3
(ii) if 5 + √3 / 7 - 4√3 = a + √3b
The other two parts of the video are:
https://youtu.be/DA5aGt-TUg4
https://youtu.be/BAtXhG_0KVE
#class9maths #class9mathsimportantquestions #chapter1extraquestionsclass9 #extraquestionschapter1mathsclass9 #chapter1importantquestionsmathsclass9
Some other important questions and their links for class 9 are as follows:
Question:
Rationalise 1/√7+√6+√13:
https://youtu.be/01xMB90wmw0
Question:
Rationalise 1/√2+√3+√5
https://youtu.be/w7pAYux99PM
Question :
Evaluate (√(3+2√2))
https://youtu.be/54w7bRP121E
Question :
Evaluate (√(5+2√6)) + (√(8-2√15))
https://youtu.be/LKZmuQD_Bik
Question :
if x=7+√40 find the value of √x+1/√x
https://youtu.be/0XtK8JjiUFk
Question :
If x=7-4√3 find the value of √x+1/√x
https://youtu.be/He3aJMUPMaU
Question:
If x= √p+2q +√p-2q / √p+2q - √p-2q then show that qx2-px+q=0
https://youtu.be/iHNY-_Ae2po
Question:
If x =(2+√5)^1/2 + (2-√5)^1/2 and y = (2+√5)^1/2 - (2-√5)^1/2 then evaluate x^2+y^2.
https://youtu.be/wJyqjprThQg

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12 апреля 2019 г. 12:01:14
00:08:43
Avi Jain Classes
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