Evaluate your six trigonometric functions when given a point not on the unit circle

The video tutorial explains how to evaluate the six trigonometric functions using a given coordinate point. It highlights the difference between using the unit circle and a right triangle when the point is not on the unit circle. The tutorial covers calculating the hypotenuse and finding sine, cosine, tangent, and their reciprocal functions. It concludes with addressing questions about coordinate points and sign changes in different quadrants.

Why is it necessary to use a right triangle to evaluate trigonometric functions for a point not on the unit circle?

• Because the point is on the y-axis

• Because the radius is not 1

• Because the point is at the origin

• Because the point is on the x-axis

What is the hypotenuse of a right triangle with legs of 7 and 24?

• 31

• 7

• 25

• 24

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

• Adjacent over hypotenuse

• Opposite over adjacent

• Opposite over hypotenuse

• Adjacent over opposite

What is the reciprocal of the sine function?

• Secant

• Tangent

• Cosecant

• Cotangent

If a point is in the second quadrant, how does it affect the sign of the cosine function?

• Cosine is positive

• Cosine is negative

• Cosine is zero

• Cosine is undefined