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Evaluate : ((16)/(81))^(-3//4)xx((49/9)^...

Evaluate : `((16)/(81))^(-3//4)xx((49/9)^(3//2)/((343)/(216))^(2//3))`

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The correct Answer is:
31.5
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ICSE-INDICES [EXPONENTS]-EXERCISE 7 (A)
  1. Evaluate : ((27)/(125))^((2)/(3))xx((9)/(25))^(-(3)/(2))

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  2. Evaluate : 7^(0)xx(25)^(-(3)/(2))-5^(-3)

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  3. Evaluate : ((16)/(81))^(-3//4)xx((49/9)^(3//2)/((343)/(216))^(2//3))

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  4. Simplify : ((8 x^(3)) /(125y^(3)))^((2)/(3))

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  5. Simplify : (a + b)^(-1) (a^(-1) + b^(-1))

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  6. Simplify : (5^(n+3)-6xx5^(n+1))/(9xx5^(n)-5^(n)xx2^(2))

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  7. Simplify : (3x^(2))^(-3)xx(x^(9))^((2)/(3))

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  8. Simplify: sqrt(1/4)+(0. 01)^(-1/2)-(27)^(2/3)

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  9. Evaluate : ((27)/(8))^((2)/(3))-((1)/(4))^(-2)+5^(0)

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  10. Simplify each of the folloiwing and express with positive index : (...

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  11. Simplify each of the folloiwing and express with positive index : (...

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  12. Simplify each of the folloiwing and express with positive index : (...

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  13. Simplify each of the folloiwing and express with positive index : [...

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  14. If 2160 = 2^(a). 3^(b) . 5^(c ), find a, b and c. Hence calculate the ...

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  15. If 1960=2^(a)xx5^(b)xx7^(c ), calculate the value of 2^(-a)xx7^(b)xx5^...

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  16. Simplify : (8^(3a)xx2^(5)xx2^(2a))/(8xx3^(3n)-5xx27^(n))

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  17. Simplify : (3xx27^(n+1)+9xx3^(3n-1))/(8xx3^(3n)-5xx27^(n))

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  18. Show that : ((a^(m))/(a^(-n)))^(m-n)xx((a^(n))/(a^(-1)))^(n-1)xx((a^...

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  19. If a = x^(m + n) . Y^(l), b = x^(n + l). Y^(m) and c = x^(l + m) . Y^...

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  20. Prove that: ((x^a)/(x^b))^a^2+a b+b^2x\ ((x6b)/(x^c))^b^2+b c+c^2\ x\ ...

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