Use a calculator which shows more decimal places on the screen - many calculators on the internet, or indeed the built-in Windows calculator, will do that. Then you'll find that you get the same answer as the textbook.
a curve has equation . find the gradients of the chords joining the following pair of points on the curve:
a) x = 1 and x = 1.01
with a) the coordinates were (1, 1) and (1.01, 1.05101005) and so it would follow:
which is = 5.101005
the textbooks answer for a) is 5.10100501
can someone tell me if i'm doing it wrong somewhere please? i really don't think i am. thanks