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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
- Let alphaa n dbeta be the roots of x^2-x+p=0a n dgammaa n ddelta be th...
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- If the sum of the first 2n terms of the A.P. 2, 5, 8, ..., is equal to...
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- Statement 1: If the arithmetic mean of two numbers is 5/2 geometric ...
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- Let the positive numbers a ,b ,ca d nd be in the A.P. Then a b c ,a b ...
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- If three positive real numbers a,b ,c are in A.P such that a b c=4 , t...
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- Consider an infinite geometric series with first term a and common rat...
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- The maximum sum of the series 20+19 1/3+18 2/3+...... is (A) 310 (...
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- In the quadratic equation ax^2+bx+c=0,Delta = b^2-4ac and alpha+beta,a...
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- Let a1,a2,a3,... be in harmonic progression with a1=5a n da(20)=25. ...
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- An infinite G.P. has first term as a and sum 5, then a belongs to a) |...
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- Let Ssub(0,pi) denote the set of values of x satisfying the equation 8...
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- The value of sum(r=0)^n(a+r+a r)(-a)^r is equal to a.(-1)^n[(n+1)a^(n+...
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- If x1,x2 …,x(20) are in H.P and x1,2,x(20) are in G.P then underset(r=...
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- The sum of series x/(1-x^2)+(x^2)/(1-x^4)+(x^4)/(1-x^8)+ to infinite t...
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- If bi=1-ai ,n a=sum(i=1)^n ai ,n b=sum(i=1)^n bi ,t h e nsum(i=1)^n ai...
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- The greatest integer by which 1+sum(r=1)^(30)rxxr ! is divisible is a....
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- (lim)(ntooo)sum(r=1)^n r/(1xx3xx5xx7xx9xxxx(2r+1)) is equal to 1/3 b. ...
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- Value of (1+1/3)(1+1/(3^2))(1+1/(3^4))(1+1/(3^8))........oo is equal ...
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- If sum(r=1)^n r^4=I(n),t h e nsum(r=1)^n(2r-1)^4 is equal to a. I(2n)-...
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- If sum of an infinite G.P. : p ,1,1//p ,1//p^2, ........ is 9//2 then ...
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