Extra precalc Review

What is the value of "x" in the diagram below?

• 2.5

• 5

• 5√3

• 10

Determine the value of: tan(C)

• 7 / 25

• 24 / 25

• 25 / 7

• 24 / 7

If tanθ = 3/4, what is cosθ?

• 3/5
• 4/5
• 4/3
• not enough information

Arccos(sin 5π/4)

• 3π/4
• π/2
• π/6
• π/3

Cos^-1(√3/2) = 

• π/3
• 2π/3
• π/6
• 5π/6

Sin^-1[cosπ]

• 0
• π
• π/2
• -π/2