Progressions Pa...

The sum of the series  will be equal to

If  is a GM (geometric mean) of a and b, then the value of n is

The sum of first n natural numbers is 5050. What is 'n' ?

If log 2, log (2^x - 1) and log (2^x + 3) are in A.P, then what is the value of x?

The sum of n terms of the series 1 + (1 + 3) + (1 + 3 + 5) + ... is

If a, b, c are in AP, then 3^a, 3^b, 3^c are in

If a, b and c are in AP, then which of the following is false?

If A, G, H are A.M, G.M. and H.M between two nos, which of the following is true?

The sequence 1, 1, 1, ____ is in

If the sum of the series 1 +   ∞ is a finite number, then

If arithmetic mean of two positive numbers is A, their geometric mean is G and harmonic mean is H, then H is equal to

If a (1/b+1/c), b (1/c+1/a), c (1/a+1/b) are in A.P, the numbers a, b, c are in

If x, 1, z are in AP and x, 2, z are in GP, then x, 4, z are in

The value of 9^1/3. 9^1/9. 9^1/27 … up to is

What is the maximum value of the sum of the given AP series?

30, 27, 24, 21, ........

The arithmetic mean and geometric mean of two numbers are 10 and 8, respectively. Find the numbers.

Which of the following statements is true?

If a, b, c are in A.P and a², b², c² are in H.P, then

Find AM, GM and HM between 2 and 8.

If the sum of n terms of the series 2³ + 4³ + 6³ + …. is 3528, then n is equal to