QUIZ 2.6A
1. If f(z) is analytic, then f'(z) exists. (a) True ; (b) False .
2. Function f(z) may be differentiable at z = z0, but not analytic near z = z0. (a) True ; (b) False .
3. Function v(x, y) = -3xy2 + x3 is an harmonic function. (a) True ; (b) False .
4. The harmonic conjugate of u(x, y) = -2xy is (a) x2 + y2 + c ; (b) - x2 - y2 + c ; (c) x2 - y2 + c .
Notes