Trigonometric Ratios in Right Triangles

You may have polarized sunglasses that eliminate glare by polarizing the light. When light is polarized, all of the waves are traveling in parallel planes. Suppose vertically polarized light with intensity strikes a polarized filter with its axis at an angle of with the vertical. The intensity of the transmitted light and are related by the equation cos theta = sqrt It/ I0 if theta = 45 degrees

B

If sec theta= 25/24 , find cot theta.

B (COT THETA 24/7)

If tan theta= 3/4 find sin theta

B (sin theta= 3/5)

Find the value of the cosine for angle A.

C 8sqrt89/89

If cot theta=4/3 , find csc theta

D

Determine the value of 649-07-02-00-00_files/i0190000.jpg (sine of 52 degrees, and 47 minutes). In this case, minutes are 1/60 of a degree. a. 0.3456926842 c. 0.4239584261 b. 0.9264835681 d. 0.7963540136

D (0.7963540136)

Determine the value of cot 36 degrees a. 1.85964798 c. 3.45827451 b. 3.85369695 d. 1.37638192

D 1.37638192

Find the value of the tangent for angle a

NOT D (10sqrt91 / 3) NOT C (sqrt91 / 10)

Find the values of the sine, cosine, and tangent for angle A

NOT D (sin A= 11sqrt157/157 , cos A=6sqrt157/157 , tan A=11/6)

Find the values of the sine, cosine, and tangent for angle A

NOT D (sin A=11sqrt157/157 , cos A=6sqrt157/157 , tan A=11/6)

For the triangle ABC, determine if the following statement is True or False. sinA= cosB, cscA= secB and tanA= cotB

True

Find the values of the sine, cosine, and tangent for angle a

A

If cot theta= 1.5 find tan theta

A (1/1.5 = .6667)

Determine the value of (cosine of 79 degrees, and 15 minutes). In this case, minutes are 1/60 of a degree. a. 0.186524036 c. 0.4852913584 b. 0.268954236 d. 0.7394832568

A 0.186524036