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The value of (19^(3)+6^(3)+(3)(19)(6)(25...

The value of `(19^(3)+6^(3)+(3)(19)(6)(25))/(3^(6)+6(243)(2)+(15)(81)(4)+(20)(27)(8)+(15)(9)(16)+(6)(3)(32)+2^(6))` is

A

19

B

6

C

25

D

1

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to simplify the expression given: \[ \frac{19^3 + 6^3 + 3 \cdot 19 \cdot 6 \cdot 25}{3^6 + 6 \cdot 243 \cdot 2 + 15 \cdot 81 \cdot 4 + 20 \cdot 27 \cdot 8 + 15 \cdot 9 \cdot 16 + 6 \cdot 3 \cdot 32 + 2^6} \] ### Step 1: Simplify the Numerator The numerator is \(19^3 + 6^3 + 3 \cdot 19 \cdot 6 \cdot 25\). We can recognize that this can be expressed in the form of the sum of cubes: \[ a^3 + b^3 + 3ab(a + b) = (a + b)^3 \] where \(a = 19\) and \(b = 6\). Calculating \(a + b\): \[ a + b = 19 + 6 = 25 \] Now, substituting \(a\) and \(b\) into the formula: \[ 19^3 + 6^3 + 3 \cdot 19 \cdot 6 \cdot 25 = (19 + 6)^3 = 25^3 \] So, the numerator simplifies to: \[ 25^3 \] ### Step 2: Simplify the Denominator Now, we need to simplify the denominator: \[ 3^6 + 6 \cdot 243 \cdot 2 + 15 \cdot 81 \cdot 4 + 20 \cdot 27 \cdot 8 + 15 \cdot 9 \cdot 16 + 6 \cdot 3 \cdot 32 + 2^6 \] Calculating each term separately: 1. \(3^6 = 729\) 2. \(6 \cdot 243 \cdot 2 = 2916\) 3. \(15 \cdot 81 \cdot 4 = 4860\) 4. \(20 \cdot 27 \cdot 8 = 4320\) 5. \(15 \cdot 9 \cdot 16 = 2160\) 6. \(6 \cdot 3 \cdot 32 = 576\) 7. \(2^6 = 64\) Now, adding these values together: \[ 729 + 2916 + 4860 + 4320 + 2160 + 576 + 64 = 15325 \] ### Step 3: Final Calculation Now we can substitute back into the original expression: \[ \frac{25^3}{15325} \] Calculating \(25^3\): \[ 25^3 = 15625 \] Now substituting this into the fraction: \[ \frac{15625}{15325} \] ### Step 4: Simplify the Fraction To simplify \(\frac{15625}{15325}\), we can divide both the numerator and the denominator by 25: \[ \frac{15625 \div 25}{15325 \div 25} = \frac{625}{613} \] ### Conclusion Thus, the value of the given expression is: \[ \frac{625}{613} \]
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