Answers

2015-07-03T16:06:54+08:00
Sin = y/r
y= -4 , r= 5
r² = x² + y²                     since, the function is in Q3 the x value is negative(-)
5² = x² + (-4)²
x= -3 

cos = -3/5
sec = 5/-3
csc= 5/-4
tan = 4/3
cot = 3/4

0