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WARM UP - Simplify, leave no denominator
1.
2.
cos 2 x
÷ cot 2 x
sin 2 x
HOMEWORK QUESTIONS???
- cos 2 x
− sin x
sinx
Simplify Trig Expressions:
1. Use identities
2. Look to add, sub., mult., div., factor
3. Get stuck, convert to sine and cosine
4. Try something! Don’t sit and stare
7.2 PART 1 – SIMPLIFYING TRIG
EXPRESSIONS
OBJECTIVE: TSW SIMPLIFY TRIG EXPRESSIONS.
ALL STEPS MUST BE SHOWN, I AM NOT A
MIND READER.
EXAMPLE 1: SIMPLIFY
EXAMPLE 2: SIMPLIFY
(1 + tan x ) 2 − 2 tan x
1−
1
csc 2 x
1
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EXAMPLE 3: SIMPLIFY
1
1
−
1 + cos x 1 − cos x
EXAMPLE 5: SIMPLIFY
sin 2 β (1 + cot 2 β ) − 1
EXAMPLE 4: SIMPLIFY
2
sin x
+ sin x csc x
cos 2 x
HOMEWORK
7.2 PART 1 PAGE 654 #’S 1-9 ALL
QUIZ 7.1 TOMORROW – STUDY HOMEWORK ASSIGNMENTS
FROM 7.1
WRITING ASSIGNMENT IN CLASS FRIDAY
2