Tuesday

January 27, 2015

January 27, 2015

Posted by **Jamie** on Wednesday, December 23, 2009 at 1:18am.

- Pre Cal -
**Bun**, Wednesday, December 23, 2009 at 1:29amcos^2 + sin^2 =1

cos^2 = 1-16/25 =9/25

sin theta terminates in quadrant II, so sin>0 but cos <0

therefore cos =-3/5

**Answer this Question**

**Related Questions**

easy trig - If sin(theta)=[sqrt(70)]/7 and theta is in Quadrant two, find the ...

simple trig - If sin(theta)=[sqrt(70)]/7 and theta is in Quadrant two, find the ...

Pre-Calculus-check answers - If cos theta = 0.8 and 270<theta<360, find ...

Pre-Cal - solve cos 5 thetha cos 15 -sin5theta sin 15 =squareroot of 3/2 Thank ...

Math - 1. Let (-7, 4) be a point on the terminal side of (theta). Find the exact...

trig - If cosecant of theta equals 3 and cosine of theta is less than zero, find...

Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...

precalc pre ap - If theta is a rotation angle that terminates in quadrant ll and...

pre cal - assume the angle is in the first quadrant, and sin theta equals 1/5. ...

math - theta is a first quadrant angle in standard position and cos theta = 1/(...