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Find x , if ((-1)/2)^(-19)-:((-1)/2)^8=...

Find `x` , if `((-1)/2)^(-19)-:((-1)/2)^8=((-1)/2)^(-2x+1)`

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To solve the equation \[ \left(-\frac{1}{2}\right)^{-19} \div \left(-\frac{1}{2}\right)^{8} = \left(-\frac{1}{2}\right)^{-2x + 1}, \] we will follow these steps: ...
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RD SHARMA-POWERS-All Questions
  1. By what number should (5/3)^(-2)be multiplied so that the product may ...

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  2. Find x , if (1/4)^(-4)xx\ (1/4)^(-8)=(1/4)^(-4x)

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  3. Find x , if ((-1)/2)^(-19)-:((-1)/2)^8=((-1)/2)^(-2x+1)

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  4. Find x , if (3/2)^(-3)xx\ (3/2)^5=(3/2)^(2x+1)

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  5. Find x, if (2/5)^(-3)xx (2/5)^(15)=(2/5)^(2+3x)

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  6. Find x , if (5/4)^(-x)-:(5/4)^(-4)=(5/4)^5

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

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

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

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

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  11. Write the following numbers in standard form: (i)0. 4579 (ii) 0. 000...

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  12. Express the following numbers in usual form. (i)

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  13. Express the number appearing in the following statements in standard f...

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

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

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  16. Express the following number in standard form: (i) 6020000000000000 ...

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

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

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

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

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