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Let b(i)gt1" for "i=1,2,"......",101. Su...

Let `b_(i)gt1" for "i=1,2,"......",101`. Suppose `log_(e)b_(1),log_(e)b_(2),log_(e)b_(3),"........"log_(e)b_(101)` are in Arithmetic Progression (AP) with the common difference `log_(e)2` . Suppose `a_(1),a_(2),a_(3),"........"a_(101)` are in AP. Such that, `a_(1)=b_(1)` and `a_(51)=b_(51)`. If `t=b_(1)+b_(2)+"........."+b_(51)" and " s=a_(1)+a_(2)+"........."+a_(51)`, then

A

(a)`sgtt " and "a_(101)gtb_(101)`

B

(b)`sgtt " and "a_(101)ltb_(101)`

C

(c)`sltt " and "a_(101)gtb_(101)`

D

(d)`sltt " and "a_(101)ltb_(101)`

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To solve the given problem, we need to analyze the sequences \( b_i \) and \( a_i \) based on the information provided. Let's break down the solution step by step. ### Step 1: Understanding the sequences We know that: - \( b_i > 1 \) for \( i = 1, 2, \ldots, 101 \) - \( \log_e b_1, \log_e b_2, \ldots, \log_e b_{101} \) are in Arithmetic Progression (AP) with a common difference of \( \log_e 2 \). ### Step 2: Expressing \( b_i \) in terms of \( b_1 \) Since the logarithms are in AP, we can express \( b_i \) as: \[ \log_e b_i = \log_e b_1 + (i-1) \log_e 2 \] This implies: \[ b_i = b_1 \cdot 2^{i-1} \] for \( i = 1, 2, \ldots, 101 \). ### Step 3: Calculating \( t \) Now, we need to calculate \( t = b_1 + b_2 + \ldots + b_{51} \): \[ t = b_1 + b_1 \cdot 2^1 + b_1 \cdot 2^2 + \ldots + b_1 \cdot 2^{50} \] This is a geometric series with the first term \( b_1 \) and common ratio \( 2 \): \[ t = b_1 \left( \frac{2^{51} - 1}{2 - 1} \right) = b_1 (2^{51} - 1) \] ### Step 4: Understanding \( a_i \) We know that \( a_1, a_2, \ldots, a_{101} \) are also in AP, with \( a_1 = b_1 \) and \( a_{51} = b_{51} \). ### Step 5: Finding the common difference of \( a_i \) Let the common difference of the AP be \( d \). Then: \[ a_{51} = a_1 + 50d = b_1 \cdot 2^{50} \] Substituting \( a_1 = b_1 \): \[ b_1 + 50d = b_1 \cdot 2^{50} \] From this, we can solve for \( d \): \[ 50d = b_1 (2^{50} - 1) \implies d = \frac{b_1 (2^{50} - 1)}{50} \] ### Step 6: Calculating \( s \) Now, we calculate \( s = a_1 + a_2 + \ldots + a_{51} \): \[ s = \frac{51}{2} \left( 2a_1 + (51 - 1)d \right) \] Substituting \( a_1 = b_1 \) and \( d \): \[ s = \frac{51}{2} \left( 2b_1 + 50 \cdot \frac{b_1 (2^{50} - 1)}{50} \right) \] This simplifies to: \[ s = \frac{51}{2} \left( 2b_1 + b_1 (2^{50} - 1) \right) \] \[ s = \frac{51}{2} b_1 (1 + 2^{50}) \] ### Step 7: Comparing \( s \) and \( t \) Now we need to compare \( s \) and \( t \): \[ t = b_1 (2^{51} - 1) \] \[ s = \frac{51}{2} b_1 (1 + 2^{50}) \] To compare \( s \) and \( t \), we can analyze: \[ s - t = \frac{51}{2} b_1 (1 + 2^{50}) - b_1 (2^{51} - 1) \] \[ = b_1 \left( \frac{51}{2} (1 + 2^{50}) - (2^{51} - 1) \right) \] This can be simplified further to determine the relationship. ### Conclusion After simplifying and comparing, we can conclude that \( s > t \).

To solve the given problem, we need to analyze the sequences \( b_i \) and \( a_i \) based on the information provided. Let's break down the solution step by step. ### Step 1: Understanding the sequences We know that: - \( b_i > 1 \) for \( i = 1, 2, \ldots, 101 \) - \( \log_e b_1, \log_e b_2, \ldots, \log_e b_{101} \) are in Arithmetic Progression (AP) with a common difference of \( \log_e 2 \). ### Step 2: Expressing \( b_i \) in terms of \( b_1 \) ...
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  6. If 100 times the 100 th term of an A.P with non- zero common differenc...

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