Exploring Trigonometric Functions and SOHCAHTOA

Which of the following is NOT one of the six major trigonometric functions?

• Sine

• Cosine

• Tangent

• Logarithm

What is the ratio for the sine function in a right triangle?

• Adjacent over Hypotenuse

• Opposite over Hypotenuse

• Hypotenuse over Opposite

• Opposite over Adjacent

What does the mnemonic SOHCAHTOA help you remember?

• The trigonometric ratios

• The order of operations

• The properties of circles

• The Pythagorean theorem

What is the reciprocal of the sine function called?

• Tangent

• Cotangent

• Cosecant

• Secant

If the angle θ in a right triangle is 42 degrees, what happens to the trigonometric ratios if the triangle size changes?

• They double

• They become undefined

• They stay the same

• They change

What theorem is used to find the missing side of a right triangle?

• Pythagorean theorem

• Binomial theorem

• Remainder theorem

• Fundamental theorem of calculus

Given a right triangle with sides 5 and 12, what is the length of the hypotenuse?

• 17

• 15

• 13

• 10

What is the cosine of an angle if the adjacent side is 12 and the hypotenuse is 13?

• 5/13

• 13/12

• 12/13

• 5/12

How do you rationalize the denominator of a fraction with a radical in the denominator?

• Multiply by the same radical

• Subtract the same radical

• Add the same radical

• Divide by the same radical

What is the simplified form of the square root of 24?

• 3√2

• 2√6

• 4√6

• 2√3