# Trig

posted by .

• Trig -

cos(theta)>0 in Q1, and Q4.

tan(theta)<0 in Q2, and Q4.

Q4 satisfies both conditions. Therefore, angle theta lies in Q4.

## Similar Questions

1. ### Trig

Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < 2pi Find: sin (v + u) cos (v - u) tan (v + u) First compute or list the cosine and sine of both u and v. Then use the combination rules sin (v + u) = sin u cos …

3. ### trig

Given that tan B= 7/24 with B in quadrant III, find sin 2B, cos 2B, and tan 2B, using angle identities.
4. ### Trig

Eight Fundamental Identities Sec thada - Cos thada How do I do this?
5. ### Math C30

Eight Fundamental Identities Sec thada - Cos thada- on one side tan thada sin thada- on the other side How do you do this ?
6. ### precalculus

find the values of the requested trig functions using the given value and quadrant in which the point corresponding to the angle lies. quadrant II; sinθ=4/5 find cosθ and tan θ
7. ### math

In which quadrant does the angle Θ lie given that Cos Θ > 0 and tan Θ > 0?
8. ### Trig

Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.
9. ### Trig

1. Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Sin(A+B). a) 24/80 [b)] 84/85 c) 60/80 d) 60/85 Find Cos(A+B). a) 32/80 b) -45/85 c) -13/80 [d)] -13/85 Find Tan(A+B) a) 0.8 [b)] -1.72 c) -4.21 d) -6.46 I keep getting …
10. ### Trig

Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(A-B).

More Similar Questions