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Write whether (2sqrt(45)+3sqrt(20))/(2sq...

Write whether `(2sqrt(45)+3sqrt(20))/(2sqrt(5))` on simplification gives a rational or an irrational number.

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RD SHARMA ENGLISH-REAL NUMBERS-All Questions
  1. The decimal expansion of the rational number (43)/(2^4xx5^3) will t...

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  2. Has the rational number (441)/(2^2xx5^7xx7^2) a terminating or a no...

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  3. Write whether (2sqrt(45)+3sqrt(20))/(2sqrt(5)) on simplification gives...

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  4. What is an algorithm?

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  5. State Euclid Division lemma.

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  6. If a and b are relatively prime numbers, then what is their HCF?

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  7. If p and q are two prime numbers, then what is their LCM?

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  8. What is the total number of factors of a prime number?

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  9. What is a composite number?

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  10. What is the HCF of the smallest composite number and the smallest p...

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  11. HCF of two numbers is always a factor of their LCM (True / False).

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  12. pi is an irrational number (True / False).

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  13. The sum of two prime numbers is always a prime number (True/false).

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  14. The product of any three consecutive natural numbers is divisible b...

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  15. Every even integer is of the form 2m , where m is an integer (True/...

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  16. Every odd integer is of the form 2m-1 , where m is an integer (True...

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  17. The product of two irrational numbers is an irrational number (True...

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  18. The sum of two irrational numbers is an irrational number (True/fal...

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  19. For what value of n ,\ 2^nxx5^n ends in 5.

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  20. If a and b are relatively prime numbers, then what is their HCF?

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