Progression (Sequence and Series)Hard
Question
If p, q, r in harmonic progression and p & r be different having same sign then the roots of the equation px2 + qx + r = 0 are -
Options
A.real and equal
B.real and distinct
C.irrational
D.imaginary
More Progression (Sequence and Series) Questions
The A.M. between two positive numbers exceeds the GM by 5, and the GM exceeds the H.M. by 4. Then the numbers are-...If A,G and H are respectively A.M., G.M., and H.M. of three positive numbers a, b and c, then the equation whose roots a...The middle term of the progression 4, 9,14,....104 is-...Let a1, a2, a3,..... be in harmonic progression with a1 = 5 and a20 = 25. The least positive integer n forwhich an...If a, b, c are in GP, then the equations ax2 + 2bx + c = 0 and dx2 + 2bx + f = 0 have a common root, if, are in...