In Exercises 1-6, evaluate the function. If the value is not a rational number, round your answer to three decimal places.
(a) cosh 0
(b) sech 1
Step 1 of 5) You can think of the function as accumulating the area under the curve from to For the area is 0 and For gives the accumulated area under the cosine curve on the entire interval This interpretation of an integral as an accumulation function is used often in applications of integration.