Question

If the function f:C→C be defined by f(x) = x2 - 1 then f-'(-5) and f-'(8)
A) {2i, – 2i} {-3, 3}
B) {4i, – 2i} {4,4} C) {2i, i} {3,4}
D) {2i,- i}{4-4}
E) {2i, i}{2,4}​

Answer 1

Answer:

D) {2i,- i}{4-4}

If the function f:C→C be defined by f(x) = x2 - 1 then f-'(-5) and f-'(8)