Question

integration help...given
f(x)= x+1 for x<0 and cos(pix) for x=>0
find...

Answer 1

\[\int\limits_{-1}^{1} f(x) dx\]

Answer 2

\[\Large\sf \int\limits\limits_{-1}^{1} f(x) dx\quad=\quad \int\limits_{-1}^{0} (x+1)\;dx+\int\limits_{0}^{1} \cos (\pi x)\;dx\]Understand what I did there? :o

Answer 3

ohh yes

Answer 4

Understand how to finish it? ^^

Answer 5

yup i got it. thank you! :)