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Is the units digit in the value of 6^n w...

Is the units digit in the value of `6^n` where 'n' is a natural number is zero? Justify your answer.

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VGS PUBLICATION-BRILLIANT-REAL NUMBERS-EXERCISE
  1. If the HCF of 306 and 657 is 9 then find their LCM.

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  2. Support the Fundamental theorem of Arithmetic by considering some exam...

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  3. Is the units digit in the value of 6^n where 'n' is a natural number i...

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  4. Explain why 7xx11xx13+13 and 7xx6xx5xx4xx3xx2xx1+5 are composite nubme...

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  5. Find the HCF of 45,75 from Euclid's division lemma.

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  6. How do you say 7xx11xx13+13 and 7xx6xx5xx4xx3xx2xx1+5 are composite nu...

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  7. Express the following in log forms. (i) 2^(5)=32

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  8. Express the following in log forms. (ii) 3^(3)=27

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  9. Express the following in log forms. (iii) 5^(3)=125

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  10. Calculate the value of log(2)512.

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  11. Calculate the value of log(10)0.01.

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  12. Express log(5)125=3 in its exponential form.

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  13. Prove that log(a)xy=log(a)x+log(a)y.

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  14. [H^+] ion concentration in a soap used by Sankar is 9.2xx10^(-22). The...

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  15. Choose the irrational numbers from the following given sqrt2, sqrt3, 5...

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  16. Define the irrational numbers. Give examples.

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  17. Find the value of sqrt2 upto 4 decimals.

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  18. Establish the relation between diagonal and side of a square.

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  19. Is pi a rational or irrational ? Give reasons.

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  20. Write the differences between rational and irrational numbers.

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