Question

Let f: R→R defined by f(x)=2x3-7 for x∈R. Then:
(A) f is one-one function
(B) f is many to one function
(C) f is bijective function
(D) f is into function
Choose the correct answer from the options given below:

• A. (A) and (D) only
• B. (B) and (D) only
• C. (B) and (C) only
• D. (A) and (C) only

Answer 1

Answer: (D)

(A) and (C) only

Answer 2

The correct option is (D):(A) and (C) only