# Trig Identities Teachers

Document Sample

```					Home Assignment 6a1

Finish the Worksheet on
“Trig Identities”
# 1 – 30

Copy today’s homework
Find the # of Degrees and each
of the 6 trig functions for:
 = 4 =
3
Sin  =      Cot  =
Cos  =      Sec  =
Tan  =      Csc  =
Pass in the drills on
trig functions. It is
worth 7 quiz points.
Home Assignment 6a1

Finish the Worksheet on
“Trig Identities”
# 1 – 30

Copy today’s homework
6a1: Proving Trig Identities

Objective: The student will
prove Trig Identities.

Copy the Objective on
today’s worksheet!
Trig Identities
What letter is the
numerator of this ratio?
Sin 
What letter is the
denominator of this ratio?
y
r
y   sin 

x
r
Trig Identities
What letter is the
numerator of this ratio?
Cos 
What letter is the
denominator of this ratio?
x
r
y   cos 

x
r
Trig Identities
What letter is the
numerator of this ratio?
Tan 
What letter is the
denominator of this ratio?
y
r
y   tan 

x
x
Trig Identities
What letter is the
numerator of this ratio?
Cot 
What letter is the
denominator of this ratio?
x
r
y
cot  
                      y
x
Trig Identities
What letter is the
numerator of this ratio?
Sec 
What letter is the
denominator of this ratio?
r
r
y
sec 
                     x
x
Trig Identities
What letter is the
numerator of this ratio?
Csc 
What letter is the
denominator of this ratio?
r
r
y
csc 
                     y
x
csc
1. sin  * ________ = 1
y     y
sin           * ____  1
r     r
y r
* 1
r y
r
 csc
y
Use the skills you have
learned to solve all problems
on the worksheet,
“Trig Identities.”
# 1-6.
7.                  sec
tan  * csc = ______
y
tan         y r
x      * 
r     x y
csc 
y     r
 sec
x
Use the skills you have
learned to solve all problems
on the worksheet,
“Trig Identities.”
# 7-12.
13.  cos  sin
= ______
cot     x x
x        ÷ 
cos         r    y
r     x y
x       * 
cot         r x
y   y
 sin
r
Use the skills you have
learned to solve all problems
on the worksheet,
“Trig Identities.”
# 13-18.
19.    sec= csc
tan
_____ = csc * tan
r y
csc 
r         * 
y        y x
r
tan  
y        sec
x      x
Use the skills you have
learned to solve all problems
on the worksheet,
“Trig Identities.”
# 19-24.
25.     1
=   csc
sin      1 y
sin 
y          ÷ 
r        1 r
1 r
* 
1 y
r
 csc
y
Use the skills you have
learned to solve all problems
on the worksheet,
“Trig Identities.”
# 25-30.

```
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
 views: 30 posted: 9/25/2012 language: English pages: 21