4a. Define in Sage the symbolic function (not a Python function) f(x) sinh(2 --1)+e arcsin() In 1: b. Compute f (1/2) exactly (.e., your answer should be a symbolic expression). In t1 4c. Compute f (1/2) numerically (i.e., your answer should be a decimal expansion). In 4d. Plot f(x) from-1 to 1 In 1: 4a. Define in Sage the symbolic function (not a Python function) f(x) sinh(2 --1)+e arcsin() In 1: b. Compute f (1/2) exactly (.e., your answer should be a symbolic expression). In t1 4c. Compute f (1/2) numerically (i.e., your answer should be a decimal expansion). In 4d. Plot f(x) from-1 to 1 In 1