2-11 CAUCHY-RIEMANN EQUATIONS Are the following functions analytic? Use (1) or (7). 2. f(z) = izz 3. f(z) -2x (cos 2y-isin 2y) 4. f(z) = e* (cos y - i sin y) 5. f(z) = Re (22) - i Im (22) 6. f(2) = 1/(2-2³) 7. f(z) = 1/2*