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OBJECTIVE RD SHARMA ENGLISH-SEQUENCES AND SERIES-Chapter Test
- The sum of the series 1-3+5-7+9-11+ . . . . To n terms is
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- If three positive unequal numbers a, b, c are in H.P., then
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- If the fifth term of a G.P. is 2, then write the product of its 9 t...
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- 1^3-2^3+3^3-4^3+........+9^3 is equal to
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- The sum of infinite number of terms in G.P. is 20 and the sum of their...
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- If 1, log (9) (3^(1 - x) + 2) and log(3) (4.3^(x) -1) are A.P. then...
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- Two sequences lta(n)gtandltb(n)gt are defined by a(n)=log((5^(n+1))/...
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- The sum of the series (1)/(sqrt(1)+sqrt(2))+(1)/(sqrt(2)+sqrt(3))+(1...
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- Natural numbers are written as 1, (2,3), (4,5,6).. Show that the sum...
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- If the first term of an A.P. is 2 and common difference is 4, then ...
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- If 1+(1+2)/2+(1+2+3)/3+ddotto\ n terms is Sdot Then, S is equal to (n(...
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- The sum of 10 terms of the series sqrt(2)+sqrt(6)+sqrt(18)+ddoti s\ ...
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- The (m+n)th and (m-n)th terms of a GP are p and q, respectively. Then,...
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- The fourth, seventh and tenth terms of a G.P. are p,q,r respectively, ...
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- The sum of the integers from 1 to 100 which are not divisible by 3 or ...
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- Let the harmonic mean and geometric mean of two positive numbers be in...
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- The sum of the series 1 + 2.2+ 3.2^(2) + 4.2^(3) + 5.2^(4) + ….. +...
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- If a\ (1/b+1/c),\ b(1/c+1/a),\ c(1/a+1/b) are in A.P. prove that a ,\ ...
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- If the m^(th),n^(th)andp^(th) terms of an A.P. and G.P. be equal and b...
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- The 7th term of a H.P. is (1)/(10) and 12 th term is (1)/(25), find th...
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