If a,b,c,d be in HP, then

JEE Main Mathematics question

If be in HP, then

(A)
(B) (this is also correct)
(C)Correct
(D)

Answer: (C)

Solution

Take positive terms in HP (the reciprocals in AP); tests on both increasing and decreasing HPs, such as and , show that (A) and (D) can fail (for example (A) fails for ). Options (B) and

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-021724