1)

If $a@ b$ $= a^{2}b^{2}$$-ab$ then $3 @ 8 =$


A) 600

B) 552

C) 576

D) 625

Answer:

Option B

Explanation:

Given $a@b$ $=a^{2}b^{2}-ab$

$\Rightarrow 3 @ 8$ $=3^{2}\times 8^{2}$$-3\times 8$ $=9\times 64-24$ 

$=576-24=552$