Trigonometry

Solve the triangle, if possible. C = 35°30' a = 18.76 c = 16.15 Which is the correct answer? A = 42°25', B = 102°05', b = 25.19 No solution A = 42°25', B = 102°05', b = 27.20; A' = 137°35', B' = 6°55', b' = 3.35 A = 102°05', B = 42°25', b = 17.52; A' = 6°55', B' = 137°35', b' = 26.19

Measure Height of Mountain (Angle of Elevation; Transit)

To measure the height of a mountain a surveyor takes two sightings of the peak at a distance of 900 meters apart on a direct line to the mountain (see attached picture). The first observation results in an angle of elevation of 47 degrees, whereas the second results an angle of elevation of 35 degrees. If the transit is 2 meters high, what is the height h of the mountain?

Trigonometry

Write the complex number in rectangular form. cis 210° Which is the correct answer? -√3/2 + i1/2 -1/2 + i-1/2 √3/2 + 1-1/2 -√3/2 + i-1/2

Trigonometry

Find the product. Write the product in rectangular form, using exact values. [8 cis 210°] [6 cis 330°1] Which is the correct answer? 24i -12 + 12√3i -48 12√3 + 12i

Identify the graph of the given polar equation.

Inspect the four given graphs, which are plotted in polar coordinates (and shown in an attached .doc file), and choose the graph that corresponds to the polar equation r = 6 - (cos theta).