I. Evaluating learning Challenge 3 Use
∆ABC to find each trigonometric ratio.
1. Sin A
2. Sin B
3. Csc B
4.Tan B
5.Sec A
Use a Calculator to evaluate the following. Round the answers to the nearest hundredths
1. Cos 10
2. Sin 30
3. Sin 20
4. Tan 25
5. Tan 48.5
Sketch the figure Using the figure below, write expression that gives the required unknown value.
1. If A = 15⁰ and c= 37, find a and b
2. If a = 2, b= 7 find < A and B
3. If B = 10⁰ and b = 10, find a
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