Trigonometry help, finding angle if obtuse angle
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Trigonometry help, finding angle if obtuse angle

[From: ] [author: ] [Date: 12-02-03] [Hit: ]
Given that x is between 0 degrees and 180 degrees state the two possible values x can take.a) sin x=0.5 b) sin x=0.15 c) sin x=0.thank you so much for your time and help please give working out THANK YOU!!......
the questions are

1.Find x in each of the following given that it is an obtuse angle
a) sin x=0.2 b) sin x=0.3 c) sin x=o.55

2. Given that x is between 0 degrees and 180 degrees state the two possible values x can take.
a) sin x=0.5 b) sin x=0.15 c) sin x=0.72

thank you so much for your time and help please give working out THANK YOU!!!!

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1. Do you have your Scientific Calculator? If, Yes, just input
a. [ inverse sine(0.2) ]= 11.567deg (since ur looking for obtuse just subtract it from 180deg since it's an trigo identity), so (180deg -11.567deg)= 168.463deg.
for b and c . Just do the same as above


2. For this item just do the stuff you did above. The first angle would be the inverse sine, and the second one is the (180deg minus ur first angle).


Hope it helped..
1
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