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By what number should (-42)^(-1) be divi...

By what number should `(-42)^(-1)` be divided so that the quotient may be `(6)^(-1)`.

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The correct Answer is:
`x=-1/(7)`
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NAND LAL PUBLICATION-EXPONENTS AND POWER-SAMPLE PAPER FOR PRACTICE
  1. Fill in the blanks. 2xx(3^(1)xx3^(-1)xx3^(-1)xx3^(0))= .

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  2. Fill in the blanks. The usual form of 9.876543xx10^(4) is .

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  3. Correct the false statement. a^(m)xxa^(n)=a^(nm)

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  4. Correct the false statement. 3^(0)lt(-1)^(235)

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  5. Correct the false statement. If 2^(n)=32 then n = 2

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  6. Correct the false statement. The multiplicative inverse of (-2)^(-3)...

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  7. The value of [(1234)^(0)]^(5) is equal to

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  8. x^(3)xxy^(3) is equal to a. (xy)^(6) b. (xy)^(3) c. (xy)^(-3) d. none

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  9. ((-3)/(2))^(-5) can be written as

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  10. The standard form of 256.003 is a. 2.56003xx10^(6) b. 25.6003xx10^(3)...

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  11. Planet A is at a distance of 8.36xx10^(7) km from earth and planet B i...

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  12. If 9^(x)=27^(y) then find the ratio of x:y

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  13. By what number should (-42)^(-1) be divided so that the quotient may b...

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  14. Correct the mistakes in the following [((-3)/(4))^(-2)]^(-1)=(3/(4))...

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  15. Correct the mistakes in the following 8^(@)-6^(@)=2^(@)

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  16. Correct the mistakes in the following (2/(3))^(-2)=(3/(2))^(-2)

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  17. If x/(y)=(2/(3))^(5)div(2/(3))^(3) find (y/(x))^(-2).

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  18. Find the value of [(4/(5))^(3)xx(4/(5))^(3)]div[(4/(5))^(4)xx(4/(5))^(...

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  19. Express (64)^(-2) as the power of (i) base 2.

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  20. Express (64)^(-2) as the power of (ii) base 4.

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