Posted by **Priscilla ** on Tuesday, February 16, 2010 at 10:03pm.

1. Write the expression as a function of an acute angle whose measure is less than 45.

a. sin 80

b. sin (-100)

To find the postive acute angle, usually you would subtract 360 from the given measure. Would you have to subtract 45 from the given measure.

2. Points A (1,0) and B (.6,-.8) are points on a unit circle O. If the measure of angle AOB = 0 {w/ a line in the middle}

Find

a. sin 0

b. cos 0

c. tan 0

But for the second question, I'm confused but I know x is always cos and y is always sin. I dont know how to use that to find sin 0 and etc.

Now thinking about it, should i use the distance formula for both of these two coordinates. I'm a little confused about this.

## Answer This Question

## Related Questions

- Math - write the expression as a function of an acute angle whose measure is ...
- Math - write the expression as a function of an acute angle whose measure is ...
- Help with deductive reasoning - Determine whether you can use the Law of ...
- need help - whats the definition of a biconditional "an acute angle is an angle ...
- Math - How does the related acute angle help to determine the trigonometric ...
- trigonometry - (a) If è is in standard position, then the reference angle è is ...
- ALGEBRA 1 - If x and 3x-10 represent the measure of the acute angles of a right ...
- Math - If A and B are acute angle such that SinA=8/17 and CosB=3/5.Find 1, Cos(A...
- Math - If A and B are acute angle such that SinA=8/17 and CosB=3/5.Find 1, Cos(A...
- math - Use the rated acute angle to state an equivalent expression sin 350

More Related Questions