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.Use the properties of exponents to veri...

.Use the properties of exponents to verify that each statement is true. (a) `"(1)/(4)(2^(n))=2^(n-2),"` (b) `"4^(n-1)=(1)/(4)(4)^(n)` (c) `"25(5^(n-2))=5^(n),` (b) `4^(n-1)=(1)/(4)(4)^(n)`

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NCERT EXEMPLAR-EXPONENTS AND POWERS-EXERCISE
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  2. The paper clip below has the indicated length. What is the length in s...

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  3. .Use the properties of exponents to verify that each statement is true...

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  4. Simplify the following using law of exponents. (3^2)×(3^2)^4.

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  5. There are 864,00 seconds in a day. How many days long is a second? Exp...

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  6. Stretching Machine Suppose you have a stretching machine which coul...

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  7. Find three repeater machines that will do the same work as a (xx64) ma...

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  8. What will the following machine do to a 2 cm long piece of chalk?

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  9. Shrinking Machine In a shrinking machine, a piece of stick is compre...

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  10. Sanchay put a 1 cm stick of gum through a (1xx3^(-2)) machine. How lon...

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  11. Find the single machine that will do the same job as the given hook -u...

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  12. Supply the missing information for each diagram.

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  13. If possible find a hook up of prime base number machine that will do t...

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  14. Find two repeater machines that will do the same work as a (xx81) mach...

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  15. Find a repeater machine that will do the same work as a(xx1/8) machine...

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  16. Find three machines that can be replaced with hook ups of (xx5) machin...

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  17. If the diameter of the Sun is 1.4xx10^9 m and that of Earth is 1.275xx...

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  18. Mass of mars is 6.42xx10^(29) kg and mass of the sun is 1.99xx10^(30)k...

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  19. The distance between the sun and the Earth is 1.496xx10^(8)km and dist...

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  20. A star is 8. 1xx10^(13) km away from the earth. Suppose light tr...

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