Trigonometri Functions Grade 10

What is the sine function?

• The sine function is used to measure temperature

• The sine function relates the angle of a right triangle to the ratio of the length of the side opposite that angle to the length of the hypotenuse.

• The sine function is only applicable to acute angles

• The sine function calculates the area of a circle

Define the cosine function.

• The cosine function is used to measure temperature

• The cosine function relates the angle of a right triangle to the ratio of the length of the adjacent side to the length of the hypotenuse.

• The cosine function is only applicable to acute angles

• The cosine function calculates the area of a circle

What is the reciprocal of sine?

• cosecant

• cosine

• secant

• tangent

How is the cotangent function related to tangent?

• The cotangent function is the square of the tangent function.

• The cotangent function is the integral of the tangent function.

• The cotangent function is the reciprocal of the tangent function.

• The cotangent function is the derivative of the tangent function.

Define the secant function.

• 1/sin(x)

• 1/tan(x)

• cos(x)

• 1/cos(x)

Explain the cosecant function.

• The cosecant function is the inverse of the tangent function.

• The cosecant function is the reciprocal of the cosine function.

• The cosecant function is the same as the secant function.

• The cosecant function is the reciprocal of the sine function.

What is the period of trigonometric functions?

• π or 180 degrees

• 4π or 720 degrees

• 3π or 540 degrees

• 2π or 360 degrees

How do you find the amplitude of a trigonometric function?

• The amplitude is the y-intercept of the function

• The amplitude is the period of the function

• The amplitude is the phase shift of the function

• The amplitude of a trigonometric function is the absolute value of the coefficient of the trigonometric term.

Describe the relationship between trigonometric functions and right triangles.

• Trigonometric functions have no relationship with right triangles

• Right triangles are not used in trigonometry

• Trigonometric functions are only applicable to equilateral triangles

• Trigonometric functions are used to relate the angles of a right triangle to the lengths of its sides.

Explain the tangent function.

• The tangent function is used to measure temperature

• The tangent function calculates the area of a circle

• The tangent function is only applicable to acute angles

• The tangent function relates the angle of a right triangle to the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle.