1. SUPPOSE THAT CSC (A) < 0, AND SEC (A) < 0. IN WHAT QUADRANT IS THE TERMINAL SIDE OF A? WHY? 2. IF COS ( A ) = - 4/5, AND COT ( A ) < 0, THEN COMPUTE THE VALUE OF CSC ( A ). 3. WHAT IS 8 [SIN 2 ( 3A) + COS 2 ( 3A ) ] ? WHY? 4. IN RIGHT TRIANGLE ABC, IF THE RIGHT ANGLE IS AT C, AND THE HYPOTENUSE AB = 25, AND THE MEASURE OF ANGLE B IS 45 DEGREES, THEN COMPUTE THE MEASURE OF SIDE AC