Compare the graphs
f(è)=sinè and f(è)=sin(-è).
f(è)=cosè and f(è)=cos(-è).
What conclusions can you make?
2 answers
e = theta :(
sine is an odd function.
cosine is an even function.
Look at the symmetry around Theta=0
cosine is an even function.
Look at the symmetry around Theta=0
3 answers