are in HP, then which of the following is/are correct?
1. a, b, c are in AP
2. (b + c)^{2}, (c + a)^{2}, (a + b)^{2 }are in GP. Select the correct answer using the code given below.
If 1/4, 1/x, 1/10 are in HP, then what is the value of x?
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If a, b, c are in geometric progression, then log_{ax} x, log_{bx} x and log_{cx} x are in
Three numbers 5, p and 10 are in Harmonic progression if p = ?
The n^{th} terms of the two series 3 + 10 + 17 + ... and 63 + 65 + 67 + .... are equal, then the value of n is:
If x^{a} = y^{b} = z^{c} and x, y and z are in GP, then a, b and c are in
If the roots of the equation a (b  c) x^{2} + b (c  a) x + c (a  b) = 0 are equal, then which one of the following is correct?
The arithmetic mean and geometric mean of two numbers are 14 and 12 respectively. What is the harmonic mean of the numbers?
If a_{1}, a_{2}, a_{3}, ........ are in H.P., then the expression a_{1}a_{2} + a_{2}a_{3} +...... + a_{n  1} a_{n} is equal to:
If the first two terms of a H.P are 2/5 and 12/13 respectively, then the largest term is
If H is the harmonic mean of numbers 1, 2, 2^{2}, 2^{3}, ......2^{n1} what is n/H equal to?
314 videos170 docs185 tests

314 videos170 docs185 tests
