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# Alg2 lesson 13-1

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• 1. Trigonometric ratios
Sine sin
Cosine cos
Tangent tan
Cosecant csc
Secant sec
Cotangent cot
• 2.
• 3. SOH
CAH
TOA
• 4.
• 5. Find the value of the six trigonometricfunctions for angleG.
opp
hyp = 40
opp = 24
hyp
Example 1-1a
opp
hyp
Example 1-1b
• 7. If find the value of cscA.
Example 1-2a
• 8. Special Triangles (page 703)
• 9. Find the value of x. Round to thenearest tenth.
hyp
opp
Example 1-3a
• 10. Solve XYZ. Round measures of sides to thenearest tenth and measuresof angles to the nearestdegree.
z
x
Find Y
28 + 90 + Y = 180
Y = 62o
hyp
opp
Example 1-4a
• 11. Solve XYZ. Round measures of sides to thenearest tenth and measuresof angles to the nearestdegree.
z
x
Find x
hyp
opp
• 12. Solve XYZ. Round measures of sides to thenearest tenth and measuresof angles to the nearestdegree.
z
x
hyp
opp
Find z
11
z
Example 1-4a