How do you determine #cottheta# given #tantheta=sqrt3/4, 0<theta<pi/2#?
1 Answer
Nov 12, 2016
Explanation:
Consider the following
#color(blue)"trigonometric identity"#
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(cottheta=1/tantheta)color(white)(2/2)|)))#
#0 < theta < pi/2# informs us that we are in the first quadrant where all trig ratios are positive.
#rArrcottheta=1/(sqrt3/4)=1xx4/sqrt3=4/sqrt3#
