Questions
There are four numbers of which the first three are in G.P. whose common ratio is and the last three are in A.P. If the last number is two less than the first, then the four members are
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a
3,1,13,−13
b
2,1,12,0
c
4,1,14,−12
d
None of these
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Correct option is B
The numbers can be taken as a,a2,a4,a−2.By question, a2,a4,a−2 are in AP.∴ 2⋅a4=a2+a−2; or a=2. Hence, the numbers are 2,1,12,0.Similar Questions
If the roots of the equation,
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