- #1
- 58
- 0
I cannot figure it out which choice is correct
Please help me
Please!
Thank you in advance
Is the correct answer is choice D ?What is the real part of $f(x+iy)$? That is $u(x,y)$.
What is its partial derivative with respect to $x$? That is $u_x$.
It seems you are doing some online exam.Is the correct answer is choice D ?
I already done it by using partial derivatives and compare them
Sir, it's not an online examIt seems you are doing some online exam.
I'd rather not validate answers for something like that.
Thank you very much for guiding it for me.Have you at least established what your u and v are?
As Klaas stated, $\displaystyle \begin{align*} u = \mathcal{Re}\left( f \right) = \mathrm{e}^x \left[ y + \cos{ \left( y \right) } \right] \end{align*}$ and $\displaystyle \begin{align*} v = \mathcal{Im}\left( f \right) = \mathrm{e}^x \sin{ \left( y \right) } \end{align*}$. Surely you can evaluate the necessary partial derivatives and make a judgement...