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NDA || Mathematics || Algebra || HP || Quiz

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Question 1

If x,y and z are in HP then  are in

Question 2

If a, b, c are in AP or GP or HP, then is equal to

Question 3

If x, 3/2, z are in AP; x, 3, z are in GP; then which one of the following will be in HP?

Question 4

If a, b, c are in HP, then the equation a(b-c) x2 + b(c-a)x + c(a-b) = 0 has

Question 5

If  are in H.P. and  ,then  are in
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Jan 15CDS & Defence