Q. 63.8( 19 Votes )

If a = xyp–1, b = xyq–1 and c = xyr–1, then let us show that aq–r br–p cp–q = 1.

Answer :

Given, a = xyp–1, b = xyq–1 and c = xyr–1


Now, LHS = aq–r br–p cp–q


=


= )


=


=


= x0 × y0 = 1 × 1 = 1 = RHS


Therefore, LHS = RHS


Hence, proved.


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