1.

VVO5+2315. If a and b are both rational numbers and7+4135 = a-b3, find thevalues of a and b.

Answer»

(5+2√3)/(7+4√3)*(7-4√3)/(7-3√3)=(5+2√3)(7-4√3)/49-48=35-20√3+14√3-23/1=12-8√3a=12 b=8



Discussion

No Comment Found