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Question

  The roots of the equation a2x2+abx=b2,a0 are:
  1. Imaginary
  2. zero
  3. real
  4. 1 real root
  5. can’t say


Solution

The correct option is C real

Soln:

D=(ab)2+4a2b2=5aab2

a2b2 has to be greater than or equal to 0 (i.e.,) D>0. So,roots are always real.

Hence, Option (b) 

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