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From Karnataka Open Educational Resources
→Hints for difficult problems
pq=c/a=1/2<br>
pq=c/a=1/2<br>
Therefore,<br>
Therefore,<br>
p^3+q^3=(p+q)^3-3pq(p+q)<br>
p^3+q^3=(p+q)^3-3pq(p+q)<br> =(2)^3-3(1/2)(2)<br>=
8-3<br>=5
=Ex.no.9.11 /problem no.9=
=Ex.no.9.11 /problem no.9=
