Question 236936: PLEASE HELP ME SOLVE THIS TRIGONOMETRIC FUNCTIONS:
GIven that sin0=4/5 and 0 lies in quadrant ll,find the following value. tan 0
Answer by RAY100(1637)   (Show Source):
You can put this solution on YOUR website! sin o = 4/5 = .800
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use arc sine to find ,,,,,o= 53.13 degrees,,,(2nd function sin on calc)
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This shows that sin 53.13 = .8,,,ok,,,but there is no 53.13 degrees in Quadrant 2
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Using the 180 degree ref line,,,,o' = 180- 53.13 = 126.87 degrees
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checking sin 126.87 = .8,,,,ok
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Now tan 126.87 = - 1.333 ,,,,,,
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OR -4/3
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