SOLUTION: If csc(&#945;) = 3, where 0 < &#945; <&#960; /2, and &#946; is a Quadrant II angle with tan(&#946;) = &#8722;7, find cos &#945; and cos &#946;, sin &#945;and sin &#946; i really

Click here to see ALL problems on Trigonometry-basics

Question 1113736: If csc(α) = 3, where 0 < α <π /2, and β is a Quadrant II angle with tan(β) = −7, find
cos α and cos β, sin αand sin β
i really need help for this one,please can i have the work so i can understand it ? Thank you
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
If csc(A) = 3, where 0 < α <π /2, and β is a Quadrant II angle with tan(β) = −7, find
cos α and cos β, sin αand sin β
===========
Too hard to read.
Don't use squiggles.
Use A instead of alpha.
-------------
Why should I spend time deciphering this?

Answer by ikleyn(52847) (Show Source):
You can put this solution on YOUR website!
.

1. If csc(a) = 3 and the angle "a" is in QI, it implies that sin(a) = and cos(a) = = = = = . 2. If tan(b) = -7 and the angle "b" is in QII, it implies that cos^2(b) = = = and cos(b) = - = = = . Notice that cos(b) is negative, since "b" is in QII. Next, knowing cos(b), you can calculate sin(b) = = = = . Answer. sin(a) = . cos(a) = . sin(b) = . cos(b) = .

SOLUTION: If csc(&#945;) = 3, where 0 < &#945; <&#960; /2, and &#946; is a Quadrant II angle with tan(&#946;) = &#8722;7, find cos &#945; and cos &#946;, sin &#945;and sin &#946; i really

SOLUTION: If csc(α) = 3, where 0 < α <π /2, and β is a Quadrant II angle with tan(β) = −7, find cos α and cos β, sin αand sin β i really