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If a,b,c are in A.P., a,x,b are in G.P. ...

If a,b,c are in A.P., a,x,b are in G.P. and b,y,c are in G.P. then `a^(2),b^(2),y^(2)` are in

A

H.P.

B

G.P.

C

A.P.

D

none of these

Text Solution

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The correct Answer is:
C
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ML KHANNA-PROGRESSIONS -PROBLEM SET - 5 (MULTIPLE CHOICE QUESTIONS)
  1. If a,b,c, are in A.P., b,c,d are in G.P. and c,d,e, are in H.P., then ...

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  2. If x,1,z are in A.P. and x,2,z are in G.P., then x,4,z are in

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  3. If a,b,c are in A.P., a,x,b are in G.P. and b,y,c are in G.P. then a^(...

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  4. If a,b,c are in H.P., then (a)/(a+c),(b)/(c+a),(c)/(a+b) will be in

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  5. If a1, a2, ,an are in H.P., then (a1)/(a2+a3++an),(a2)/(a1+a3++an), ...

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  6. If xgt1,ygt1,zgt1 are in G.P. then 1/(a+Inx), 1/(1+Iny), 1/(1+Inz) are...

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  7. If x,y,z are in G.P. (x,y,z gt 1) , then (1)/(2x+log(e)x), (1)/(4x+log...

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  8. In an A.P., T(1) = log a, T(n+1) = log b, T(2n + 1) = log c, then a, b...

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  9. If in a G.P. of 3n terms S(1), S(2), S(3) denote the sum of first n, s...

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  10. If log(x+z)+log(x-2y+z)=2log(x-z)," then "x,y,z are in

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  11. If a, b, c are in H.P., then a^(2) (b - c)^(2), (b^(2))/(4) (c - a)^(2...

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  12. If I(n)=int(0)^(pi)(1-sin2nx)/(1-cos2x)dx then I(1),I(2),I(3),"….." ar...

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  13. If I(n) = int(0)^(pi//2) (sin^(2)nx)/(sin^(2)x)dx then I(1),I(2),I(3),...

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  14. If I(n) = int(0)^(pi//4) tan^(n) x sec^(2)x dx, then I(1), I(2), I(3),...

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  15. Let the roots alpha, beta of the equation ax^(2) + bx + c = 0 satisfy ...

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  16. If a, b, c be in A.P and a^(2), b^(2), c^(2) in H.P., then

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  17. If a, b, c are in H.P. then the value of ((1)/(b) + (1)/(c) - (1)/(a))...

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  18. The next term of the sequence 1,5,14,30,55,... is

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  19. If a ,b ,c are in G.P. and a-b ,c-a ,a n db-c are in H.P., then prove ...

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  20. If a,b, and c are in G.P then a+b,2b and b+ c are in

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