Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
cofunctions(4) work.notebook Do Now: Check HW answers and ask questions! Pg 414 and do the following problems!!!! Get calculator! Do Now: Cofunctions: Guess what the cofunction is for: 1) sin x 2) tan x 3) sec x cofunctions(4) work.notebook Cofunction Identities sin x = cos (90o x) cos x = sin (90o x) tan x = cot (90o x) cot x = tan (90o x) sec x = csc (90o x) csc x = sec (90o x) a) Rewrite each function in terms of its cofunction b) Find, to four decimal places, the value of the function in part a. 2) sin 86 1) cos 80 3) sec 75 4) tan 54 What mode should your calculator be in? cofunctions(4) work.notebook 5) sec 125 6) cos 255 7) sin 295 8) sec 285 a) Rewrite each function value in terms of its cofunction. b) Find the exact value of the function value in part a. 1) sin π/3 2) tan π/6 3) csc 5π/6 4) tan ( 5π/3) a) cot (π/2 ‐ (‐ 5π/3)) cot (π/2 + 5π/3) cot (13π/6) b) cot 390 cot 30 _ √3 cofunctions(4) work.notebook Homework: Pg 427 # 3 33 odd and Pg 430 # 1 18, 20 33 all Study for Test: 1) Arc length formula 2) Change degrees to radians 3) Change radians to degrees 4) Remaining trig values (Homework we went over today) 5) Trig 123 with radian measures 6) Factoring 7) Pythagorean Identities 8) Cofunction Identities 9) Intersection of unit circle and angle in standard position 10) Function Notation 11) Inverse Trig values in 1st quadrant rounded to a decimal Due Thursday also: Pg 430 # 1 33 odd and 18, omit 19,