Homework Help: Math

Posted by Dominique on Tuesday, December 18, 2012 at 9:02pm.

The point P(k,24) is 25 units from the origin. If P is on the terminal arm of an angle in standard position, find, for each value of k.
a) The sin of the angle
b) The cosine of the angle

Math - Reiny, Tuesday, December 18, 2012 at 9:09pm
by Pythagoras

k^2 + 24^2 = 25^2
k^2 + 576 = 625
k^2 = 49
k = ± 7

if k = +7
sinŲ = 24/25
cosŲ = 7/25

if k= -7
sinŲ = 24/25
sinŲ = -7/25

Answer this Question

Related Questions

Math - Obtuse angles A and B are in standard position. Point P(-3,4) is on the ...
math:) - If the given point is on the terminal arm of an angle A in standard ...
Calculus - The point A(-3, -5) is one the terminal arm of an angle feta. ...
math - trigonometric functions/ radians the angle Ə is in the first ...
math - There is a square whose vertices lie on a unit circle. Point P lies on ...
Math - The point (-8,3) lies on the terminal arm of angle theta in standard ...
Math Help Plz - The point (3,-8) is on the terminal arm of the angle x. Find ...
Physics - A ballistic pendulum consists of an arm of mass M and length L = 0.485...
Grade 11 math - If the given point is on the terminal arm of an angle A in ...
Physics - A ballistic pendulum consists of an arm of mass M and length L = 0.52 ...

For Further Reading

First Name:
School Subject:
Answer: