Trig unit 2 flashcard

Front

What is the sine function used for in trigonometry?

Back

The sine function is used to relate the opposite side of a right triangle to the hypotenuse.

Front

What is the relationship between secant and cosecant in quadrant 3?

Back

Both secant (sec) and cosecant (cosec) are negative in quadrant 3.

Front

In which quadrant is sine positive and secant negative?

Back

Sine is positive and secant is negative in quadrant 2.

Front

What is the tangent function used for in trigonometry?

Back

The tangent function is used to relate the two legs (opposite and adjacent sides) of a right triangle.

Front

What is the complementary angle relationship in a right triangle?

Back

In a right triangle, the complement of angle B is angle A, which means sin(A) = cos(B).

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What are the three primary trigonometric functions?

Back

The three primary trigonometric functions are sine (sin), cosine (cos), and tangent (tan).

Front

How do you calculate the sine of an angle in a right triangle?

Back

Sine of an angle is calculated as the length of the opposite side divided by the length of the hypotenuse.

Front

What is the cosine function used for in trigonometry?

Back

The cosine function relates the adjacent side of a right triangle to the hypotenuse.

Front

What is the relationship between sine and cosine for complementary angles?

Back

For complementary angles, sin(A) = cos(90° - A).