Posted by Ma.Theresa Limjap on Thursday, June 24, 2010 at 6:59am.
so you know that x (adjacent) is 1 and
y (opposite) is 2
Using Pythagoras we can find r (the hypotenuse)
r^2 = 1^2 + 2^2 = 5
r = √5
now now simply use the definitions to form the 6 different trig ratios
e.g.
cos Ø = adj/hyp = 1/√5
sec Ø = 1/cosØ = √5
etc
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