Monday

September 22, 2014

September 22, 2014

Posted by **Vincent** on Thursday, June 4, 2009 at 11:23pm.

Find csc(u-v).

First of all, I drew the triangles of u and v. Also, I know the formula of sin(u-v) is sin u * cos v - cos u * sin v. However, I am confused of what you do when you have csc(u-v). Would you do csc u * sec v - sec u * csc v?

Thanks.

- Alg2/Trig -
**Reiny**, Thursday, June 4, 2009 at 11:37pmno, that is wishful thinking.

csc(u-v) = 1/sin(u-v)

so work out the sin(u-v) according to your formula, the take the reciprocal of your final fraction.

- Alg2/Trig -
**Vincent**, Thursday, June 4, 2009 at 11:42pmOkay, I worked sin(u-v) out and I got 33/65. Would I then flip it over and get 65/33 as my final answer?

- Alg2/Trig -
**Reiny**, Thursday, June 4, 2009 at 11:44pmyes, that is also what I got

(and I checked it by finding the actual angles)

- Alg2/Trig -
**Vincent**, Thursday, June 4, 2009 at 11:45pmOkay thanks for your help!

**Answer this Question**

**Related Questions**

trig - Find the exact value of the trigonometric function given that sin u = &#...

Trigonometric Functions - Determine the Value of all six trigonometric functions...

Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...

precal - use the given info. to find the exact value of the trig function. csc u...

trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...

Trig - given that sinx=3/4 and cosy=-5/13 and both x and y are in quadrant II, ...

TRIG/ALGEBRA - 1) Find the exact value. Use a sum or difference identity. tan (-...

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

Trig - Find the exact values of the six trigonometric functions 0 if the ...

trig - The terminal side of θ lies on a given line in the specified ...