SECOND GRADING, 15 SEMESTER NAME: GRADE & SECTION: This is a 30 - point group work The group will be composed of 5 members (Remember CBL students group among themselves, same with OBL students ) You may communicate through whatever is convenient for you. Detach the 2 pages and staple them together. 1. MATCHING TYPE. Choose an expression from Column II that is equal to an expression in Column I. Write the letter that corresponds to your answer before each number. (10 points) Column I Column Il 1 +sin x 1. sin x sec x cot x A Cos x 2. 2 seex B. Secx sin x cola+tanx C. 2sin x 3. sec x - sec x sin*x D. sin x(1 + cot x) 4. COST tan x + E. 2 1+sinx CSCX 5. (sin x + cos x) + (sin x - cos x)2 F. 1 - costx 6. tan x + cotx 1+sinx G. secx 7. sin' x+cos'x sin x+cos x H. sec x 8. (1 - cos x) (1 + secx) cotx 2 sin x csc x J. 0 9. tan x Secx+1 secx+1 tan x K. 1 - sin x cos x 10. tanx+secx-1 L. -1 tan x-secx+1 M. 2 tan x (CSC x sec x II. PROVING: Prove or disprove the following. Write your answers on a separate sheet of bon paper. Strictly No erasures. (4 points each) tan 0-tan Osin20 1. NI 2 sin 0 cos 0 page 118 distributing, uploading or pos