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asked in Compiler Design by Veteran (10.3k points)
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In this question better u go bottom - up  so here       1.    (a+a)

                                                                                  2.  ((a+a)+a)

                                                                                  3.  (((a+a) +a) + a)

 so here option D is correct
answered by Boss (7.1k points)
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D right?? Sure na?
yes ...option D
Okay bro. I was not expecting errors from Virtual Gate. Thats why I am double checking.

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