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Let , then all real values of  for which  takes real values, are

a)

b)

c)

d)

None of these


Question ID - 104130 | Toppr Answer

Let , then all real values of  for which  takes real values, are

a)

b)

c)

d)

None of these

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

We have,

 here  cannot be 2.

 are positive.

     ….(i)

or  is negative and  is negative.

   …(ii)

From Eqs. (i) and (ii), we get



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