CBSE /Class 9
Maths MCQ Based On Introduction to number system
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CBSE Class 9 Maths Introduction to number system
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What is the basic concept of rationalization?
Since, the given problem has irrational term in the denominator for 1/x. So we need to rationalize using the method of multiplication by conjugate and then applying the formula for the difference of the squares of two terms.
a m × a n = a ( m +n) a m ÷ a n = a (m -n)
How do you divide two natural numbers? Use the same concept.
Solve using: (x√a + y√b)(√a – √b) = x2a –y2b
How do you multiply two natural numbers? Use same concept.
Use the Identities.
What is the basic concept of rationalization?
Using division method.
Decimal expansion
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