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If (4^3)(4^6)(4^9)(4^(12))(4^(3x))=(0. 0...

If `(4^3)(4^6)(4^9)(4^(12))(4^(3x))=(0. 0625)^(-54)` , the value of `x` is (a)27 (b) 28 (c) 29 (d) 30

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RD SHARMA ENGLISH-GEOMETRIC PROGRESSIONS-All Questions
  1. If p ,q be two A.M. ' s and G be one G.M. between two numbers, then...

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  2. If x is positive, the sum to infinity of the series 1/(1+x)-(1-x)/((1+...

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  3. If (4^3)(4^6)(4^9)(4^(12))(4^(3x))=(0. 0625)^(-54) , the value of x is...

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  4. The sequence 4,12,36,108, is a G.P., because (12)/4=(36)/(12)=(108)/(3...

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  5. The sequence 1/3,-1/2,3/4,-9/8 is a G.P. with first term 1/3 and commo...

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  6. Show that the sequence given by an= 3\ (2^n),\ for all n in N , is a...

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  7. Find the 9^(th) term and the general term of the progressions: 1/4, -1...

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  8. Find the 5th term of the progression 1,((sqrt(2)-1))/(2sqrt(3)),\ ((3-...

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  9. Which term of the G.P. 5,10 ,20 ,40 ,..... i s5120 ?

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  10. The first term of a G.P. is 1. The sum of the third and fifth terms is...

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  11. If the 4th and 9th terms of a G.P. be 54 and 13122 respectively, fi...

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  12. Find a G.P. for which sum of the first two terms is - 4 and the fift...

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  13. If the third term of G.P.is 4, then find the product of first five ter...

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  14. If the p t h ,\ q t h\ a n d\ r t h terms of a G.P. are a ,\ b ,\ c re...

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  15. Find four numbers forming a geometric progression in which the third ...

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  16. The number of bacteria in a certain culture doubles every hour. If ...

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  17. What will Rs. 500 amounts to in 10 years after its deposit in a bank w...

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  18. A manufacturer reckons that the value of a machine, which costs him Rs...

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  19. If the first and the nth terms of a G.P., are a and b respectively, a...

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  20. Show that the products of the corresponding terms of the sequences a ,...

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