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NAGEEN PRAKASHAN-SEQUENCE AND SERIES-Exercise 9M
- If 1, log(y)x, log(z)y,-15 log(x)z are in A.P. then the correct statem...
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- The first term, second term and middle term of an A.P. are a, b and c ...
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- The number of common terms in the series 17+21+25+…+417 and the series...
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- The sum of (2n+1) terms of the series a-(a+d)+a(a+ad)-(a+3d)+… is :
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- If a, b, c are in A.P. as well as in G.P. then correct statement is :
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- If 1/a ,1/b ,1/c are in A.P. then (b+c)/a ,(c+a)/b ,(a+b)/c are in :
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- If x=1+a+a^(2)+...oo, a lt 1 and y=1+b+b^(2)+...oo, b lt 1, then 1+ab+...
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- If a, b, c are in A.P. and b-a, c-b, a are in G.P. then a:b:c=?
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- "If "5^(1+x)+5^(1-x),(a)/(2),25^(x)+25^(-x) are three consecutive term...
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- If the ratio of the sum of n terms of two arithmetic progressions is (...
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