1. Find the exact value of sin(−), given that sin=−4/5 and cos=12/13, with in quadrant III and in quadrant IV. 2. Find all real numbers in the interval [0,2) that satisfy the equation.
3sec^2 tan =4tan
3. Simplify the following trigonometric expressions, using identities as needed:
sin()/1−cos() + 1−cos()/sin()

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?