question_answer

    Find the value of when                     OR Factories  

Answer:

                 (1) (1)          ?(i)(1/2) Given,                       ?(ii) (1/2) On substituting Eq. (ii) Eq. (i), we get                 (1) OR [making quadratic polynomial] On putting we get                        (1/2) [by splitting middle term]                                                  (1)                       (1/2)                                       (1/2)                               (1/2) Hence,       (1)