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Let {an}, be a sequence of distinct real...

Let `{a_n}`, be a sequence of distinct real numbers, then among any five distinct terms there are two a and b, such that |ab+1| > |a-b| .

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VMC MODULES ENGLISH-SEQUENCE AND SERIES -JEE MAIN & Advance ( ARCHIVE)
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  2. If a1,a2,a3, ,an are in A.P., where ai >0 for all i , show that 1/(sqr...

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  8. If the m th, n th and p th terms of an AP and GP are equal and are x ,...

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  9. about to only mathematics

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  10. If S(1), S(2), S(3),...,S(n) are the sums of infinite geometric series...

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  11. The sum of the squares of three distinct real numbers which are in G...

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  12. If a , b , c , are positive real numbers, then prove that (2004, 4M) {...

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  13. If a,b,c are in AP and a^(2),b^(2),c^(2) be in HP. Then, prove that -(...

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  14. If A1,A2 be two A.M.\'s G1,G2 be the two G.M.\'s and H1,H2 be the two ...

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  16. If x,y,z are in HP, then show that log(x+z)+log(x+z-2y)=2 log (x-z)

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  18. If a >0,b >0 and c >0 prove that (1984, 2M) (a+b+c)(1/a+1/b+1/c)geq9

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  19. If the sum of first n terms of an A P is c n^2, then the sum of square...

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  20. Let Sn=sum(k=1)^(4n)(-1)(k(k+1))/2k^2dot Then Sn can take value (s) 10...

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