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HIMALAYA PUBLICATION-PROGRESSIONS-QUESTION BANK
- If the sum of the first 2n terms of the A.P. 2,5,8,"……….." is equal to...
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- An infinite G.P. has first term 'x' and sum '5' , then x belongs to :
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- If (a^(n)+b^(n))/(a^(n-1)+b^(n-1)) is an G.M between a and b then the ...
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- If the sum of first n terms of an A.P. is cn^(2) , then the sum of squ...
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- If (a+b)/(1-a b), b, (b+c)/(1-b c) are in A.P, then a, (1)/(b), c are ...
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- If A(1), A(2) be two A.M's and G(1), G(2) be two G.M's between a and b...
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- The sum pf 'n' terms of two arithmentic progressions are in the ratio ...
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- If x=1+y+y^(2)+.. . to oo, then y is
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- If A=1+r^(a)+r^(2 a)+r^(3 a)+.. . to oo and lebrge B=1+r^(b)+r^(2 b)+....
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- The determinant : |(a,b,aalpha+b),(b,c,balpha+c),(aalpha+b,balpha+c,...
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- If a,b,c are in G.P.L, then the equations ax^(2) + 2bx + c = 0 0 and d...
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- Every element of a G.P is positive and also every element is the sum o...
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- If x gt 1 , y gt 1 , z gt 1 are in G.P. , then (1)/(1 + log x) , (1)/(...
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- age0, then sum(n=1)^(infty)((a)/(a+1))^(n) equals
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- If x,y,z are in A.P. and tan^(-1) x , tan^(-1) y and tan^(-1) z are a...
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- The sum of three numbers in A.P. is 27 and the sum of their squares is...
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- If a,b,c,d and p are distinct non -zero real numbers such that : ( a...
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- If A.M of two numbers is twice their G.M, then the ratio of the greate...
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- If S(n) = nP + (n (n - 1))/(2) Q where Sn denotes the sum of the first...
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- The first and last elements of an A.P are a and l respectively. If S i...
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