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If x=(3/2)^2x\ (2/3)^(-4),\ find the va...

If `x=(3/2)^2x\ (2/3)^(-4),\ ` find the value of `x^(-2)dot`

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RD SHARMA ENGLISH-POWERS-All Questions
  1. Find x , if (5/4)^(-x)-:(5/4)^(-4)=(5/4)^5

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  2. Find x , if (8/3)^(2x+1)x(8/3)^5=(8/3)^(x+2)

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  3. If x=(3/2)^2x\ (2/3)^(-4),\ find the value of x^(-2)dot

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  4. If x=(4/5)^(-2)-:(1/4)^2, find the value of x^(-1)dot

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  5. Find the value of x for which 5^(2x)-:5^(-3)=5^5dot

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  6. Write the following numbers in standard form: 0. 4579 (ii) 0. 000007 ...

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  7. Express the following numbers in usual form. (i) 3.02 x 10^-6 (ii)...

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  8. Express the number appearing in the following statements in standard...

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

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  10. The size of a red blood cell is 0. 000007\ m and the size of a plant c...

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  11. Express the following number in standard form: 6020000000000000 (ii) ...

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  12. Write the following numbers in the usual form: (i)\ 4. 83\ x\ 10^7 ...

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  13. Choose the correct alternative in each of the following : Square of...

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  14. Cube of (-1)/2i s (a)1/8 (b) 1/(16) (c) -1/8 (d) (-1)/(16)

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  15. Which of the following is not equal to ((-3)/5)^4? (a)((-3)^4)/(5^4) ...

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  16. Which of the following is not reciprocal of (2/3)^4? (3/2)^4 (b) ...

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  17. Which of the following numbers is not equal to (-8)/(27)?\ (a)(2/3)...

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  18. (2/3)^(-5) is equal to (a)((-2)/3)^5 (b) (3/2)^5 (c) (2^-5)/3 ...

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  19. ((-1)/2)^5*\ ((-1)/2)^3 is equal to (a)((-1)/2)^8 (b) -\ (1/2)^8...

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  20. ((-1)/5)^3-:((-1)/5)^8 is equal to (a) (-1/5)^5 (b) (-1/5)^(11) ...

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