Saturday

January 31, 2015

January 31, 2015

Posted by **Dave** on Monday, May 3, 2010 at 1:06am.

Find tan (s + t) given that sin s = 1/4, with s in quadrant 2, and sin t = -1/2, with t in quadrant 4.

- Trig -
**Reiny**, Monday, May 3, 2010 at 1:27amsin s = 1/4 and s in II, ---> tan s = -1/√15

sin t = -1/2, and t in IV ---> tan t = -1/√3

tan(s+t) = (tans + tant)/(1 - tanstant)

= (-1/√15 - 1/√3)/(1 - 1/√45)

I will let you finish the arithmetic.

**Answer this Question**

**Related Questions**

trig - how do i set this problem up? Find tan (s + t) given that sin s = 1/4, ...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

trig 26 - simplify to a constant or trig func. 1. sec Ču-tan Ču/cos Čv+sin Čv ...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

trig - Given that tan B= 7/24 with B in quadrant III, find sin 2B, cos 2B, and ...

Trig Question - Given that tan x= -3/4 and x is in the second quadrant. Find sin...

Math-Trig - Trig Questions- 1. Write the algebraic expression which shows Cos((...

Trig - Find cos(s+t) if cos s= -1/2 and sin t= 3/5, s and t are in quadrant II. ...

Trig Identities - Proving identities: 1) 1+ 1/tan^2x = 1/sin^2x 2) 2sin^2 x-1 = ...

trig - can someone please help me with this problem. i'm doing my review right ...