1 step solns A

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1 step solns A
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1) Solve Sin(x) 0.24
Positive Sin so quadrant 1 2
x Sin-1 0.24
1st solution x 13.9
2nd solution x 180 13.9 166.1
Positive Cos so quadrant 1 4
2) Solve Cos(x) 0.44
x Cos-1 0.44
1st solution x 63.9
2nd solution x 360 63.9 296.1
3) Solve Tan(x) 0.84
Positive Tan so quadrant 1 3
x Tan-1 0.84
1st solution x 40.0
2nd solution x 180 40.0 220.0
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1 step solns B
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4) Solve Sin(x) -0.34
Negative Sin so quadrant 3 4
x Sin-1 0.34 19.9º
Use positive value
1st solution x 180 19.9 199.9º
2nd solution x 360 19.9 340.1
5) Solve Cos(x) -0.77
Negative Cos so quadrant 2 3
x Cos-1 0.77 39.6º
Use positive value
1st solution x 180 39.6 140.4º
2nd solution x 180 39.6 219.6