Trigonometry Final Exam Review Fall '24

Front

What is the definition of secant (sec) in trigonometry?

Back

Secant is defined as the reciprocal of cosine: sec(x) = 1/cos(x).

Front

State the Pythagorean identity involving sine and cosine.

Back

The Pythagorean identity is: sin²(x) + cos²(x) = 1.

Front

What is the relationship between tangent and cotangent?

Back

Tangent is the reciprocal of cotangent: tan(x) = 1/cot(x) or cot(x) = 1/tan(x).

Front

Back

The simplified expression is sin(x).

Front

What is the value of sec²(x) in terms of tan(x)?

Back

sec²(x) = 1 + tan²(x).

Front

What is the sine of an angle in terms of the unit circle?

Back

The sine of an angle is the y-coordinate of the point on the unit circle corresponding to that angle.

Front

What is the cosine of an angle in terms of the unit circle?

Back

The cosine of an angle is the x-coordinate of the point on the unit circle corresponding to that angle.

Front

Back

Front

What is the definition of cosecant (csc) in trigonometry?

Back

Cosecant is defined as the reciprocal of sine: csc(x) = 1/sin(x).

Front

What is the formula for finding the length of a side in a right triangle using sine?

Back

The formula is: opposite side = hypotenuse * sin(angle).