A) \[x=0.5\,\,,\,\,y=3.5\]
B) \[x=5\,\,,\,\,y=3\]
C) \[x=\frac{1}{2}\,\,,\,\,y=7\]
D) \[x=0,\,y=\frac{3+7i}{2i}\]
Correct Answer: A
Solution :
\[3-2yi={{9}^{x}}-7i\] Equating real and imaginary parts both sides \[{{9}^{x}}=3\Rightarrow \,{{3}^{2x}}={{3}^{1}}\Rightarrow 2x=1\Rightarrow x=0.5\] \[2y=7\Rightarrow \,y=3.5\].
You need to login to perform this action.
You will be redirected in
3 sec
