What is the value of cos(pi/8 + pi/8) ?
1 Answer
Jul 16, 2016
Explanation:
cos(pi/8+pi/8)=cos((2pi)/8)=cos(pi/4) and
cos(pi/4)=1/sqrt2
cos(pi/8+pi/8)=cos((2pi)/8)=cos(pi/4) and
cos(pi/4)=1/sqrt2