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NAGEEN PRAKASHAN ENGLISH-SEQUENCE AND SERIES-Exercise 9E
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- Find 4 numbers in A.P. whose sum is 4 and sum of whose squares is 84.
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- Find 4 numbers in A.P. such that the sum of first and fourth number is...
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- Divide 32 into four parts which are in A.P. such that the ratio of the...
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- If a, b, c are in A.P., then prove that : (i)ab+bc=2b^(2) (ii) (a-...
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- If a, b, c are in A.P., then prove that : (i) b+c,c+a,a+b" are also ...
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- If (1)/(a),(1)/(b),(1)/(c) are also in A.P. then prove that : (i) ((b...
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- If a^(2)+2bc,b^(2)+2ac,c^(2)+2ab are in A.P ., show that (a) (1)/(b...
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- If a^2(b+c),b^2(c+a),c^2(a+b), are in A.P. show that either a ,b ,c ar...
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