Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Engineering Mathematics Complex Variables Complex Functions
If f(z) is an analytic function of Z, then \(\left(\frac{\partial^2}{\partial x^2}+\frac{\partial^2}{\partial y^2}\right)\) |real f(z)|2
1
2|f1(z)|2
2
4|f1(z)|2
3
8|f1(z)|2
4
none of these