Asked by Dani
Find the values of the trigonometric functions of è from the information given.
cot è = 1/2 , sin è < 0
cot è = 1/2 , sin è < 0
Answers
Answered by
Steve
cot = 1/2
cot > 0 in QI,QIII
sin < 0 in QIII,QIV
so, we are in QIII and x<0, y<0
r = √5, so
cot = x/y = -1/-2
sin = y/r = -2/√5
cos = x/r = -1/√5
...
cot > 0 in QI,QIII
sin < 0 in QIII,QIV
so, we are in QIII and x<0, y<0
r = √5, so
cot = x/y = -1/-2
sin = y/r = -2/√5
cos = x/r = -1/√5
...
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