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Practice Problems. 1. Write the following to 4 decimal places A) sin 34 o = _____ B) cos 34 o = _____ C) tan 4 o = _____ D) cos 84 o = _____ E) tan 30 o = _____ F) cos 18 o = _____. Practice Problems. 2. Solve for x. Write the answer to 2 decimal places. A) B). . C) D)
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Practice Problems 1. Write the following to 4 decimal places A) sin 34o = _____ B) cos 34o= _____ C) tan 4o = _____ D) cos 84o= _____ E) tan 30o = _____ F) cos 18o= _____
Practice Problems 2. Solve for x. Write the answer to 2 decimal places. A) B)
.C) D) E) F)
A B C Chapter 5 Trigonometry • Consider DABC • Label the sides as hypotenuse (hyp), opposite (opp), and adjacent (adj) for angle A
Label the sides as hypotenuse (hyp), opposite (opp), and adjacent (adj) for angle B • Note: The opposite and adjacent switches places when switching angles. • The hypotenuse does not switch. It is always across from the right angle. A C B
Trig Functions • sin = • cos = • tan = SOHCAHTOA Some Old Hippie Caught Another Hippie Trippin’ On Acid
A B C • Write the trig ratios for angle A sin A= cos A = tan A = 5 3 4
Practice: For each of the following triangles find A) the missing side (to one decimal place) B) the trig ratios for angles A and B 1. A 13 B 12 C