If a + b = 8 and ab = $$\frac{32}{3}$$, then $$(a^3 + b^3)$$ is equal to:
$$(a + b)^ 3$$ =Â $$a^3$$ + $$b^3$$ +3ab(a+b)
$$8^ 3 $$ =Â $$ a^3 + b^3 + 3 \times \frac{32}{3}\times 8 $$
512 =Â $$a^3$$ + $$b^3$$ + 256
$$a^3$$ + $$b^3$$Â =256
Create a FREE account and get:
Detailed syllabus & Topic-wise Weightage
By proceeding you agree to create your account
Free CAT Syllabus PDF will be sent to your email address soon !!!
