A) 2xy
B) -2xy
C) 12xy
D) -12xy
Correct Answer: B
Solution :
We have, \[{{\left( \frac{3x}{4}-\frac{4y}{3} \right)}^{2}}\] \[={{\left( \frac{3x}{4} \right)}^{2}}+{{\left( \frac{4y}{3} \right)}^{2}}-2\times \frac{3x}{4}\times \frac{4y}{3}\] \[=\frac{9{{x}^{2}}}{16}+\frac{16{{y}^{2}}}{9}+(-2xy)\]You need to login to perform this action.
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