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Prove that 2-3sqrt(5) is an irrational n...

Prove that `2-3sqrt(5)` is an irrational number.

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RD SHARMA-REAL NUMBERS-All Questions
  1. Show that 5-2sqrt(3) is an irrational number.

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  2. Prove that 2sqrt(3)-1 is an irrational number

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  3. Prove that 2-3sqrt(5) is an irrational number.

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  4. 4. Prove that sqrt(3)+sqrt(5) is irrational.

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  5. Prove that sqrt(3)+sqrt(4) is an irrational number.

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  6. If p ,\ q are prime positive integers, prove that sqrt(p)+sqrt(q) i...

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  7. Without actually performing the long division, state whether the fo...

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  8. Without actually performing the long division, state whether the fo...

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  9. Without actually performing the long division, state whether the fo...

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  10. Without actually performing the long division, state whether the fo...

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  11. Write down the decimal expansions of the following rational numbers...

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  12. Write down the decimal expansions of the following rational numbers...

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  13. What can you say about the prime factorisations of the denominators...

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  14. State Fundamental Theorem of Arithmetic.

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  15. Write 98 as product of its prime factors.

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  16. Write the exponent of 2 in the prime factorization of 144.

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  17. Write the sum of the exponents of prime factors in the prime factor...

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  18. If the product of two numbers is 1080 and their HCF is 30, find the...

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  19. Write the condition to be satisfied by q so that a rational numb...

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  20. Write the condition to be satisfied by q so that a rational numb...

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