Question #fc725
1 Answer
Jan 7, 2018
Explanation:
#"note that "sin(pi/4)=1/sqrt2=1/sqrt2xxsqrt2/sqrt2=sqrt2/2#
#rArrsin^-1(sqrt2/2)=pi/4#
#"note that "sin(pi/4)=1/sqrt2=1/sqrt2xxsqrt2/sqrt2=sqrt2/2#
#rArrsin^-1(sqrt2/2)=pi/4#