Trig Final Exam Test Review

Find the exact value cos 150º.

Find the exact value tan 360º.

• 0

• 1

• -1

• undefined

Evaluate using a calculator.

^{cos π/10.}

• 0.9999

• 0.3090

• 0.9511

• 0.0055

sin^-1(-1/2)

• π/3
• π/6
• 5π/6
• -π/6

cos^-1(√(3)/2)

• π/3
• 2π/3
• π/6
• 5π/6

If sinx=0.084251, find x in degrees. Round to the hundredths.

A telephone booth that is 8 ft tall casts a shadow that is 4 ft long.  Find the height of a lawn ornament that casts a 2 ft shadow.

• 4 ft
• 2 ft
• 8 ft
• 6ft

Given a right triangle with cosx=4/7, find tanx in quadrant IV.

Given the illustrations above, determine the angle of elevation

• JK

• JL

• KL

• S

Simplify using an identity:

sin (x+π)