February 22nd copyright2009merrydavidson

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Presentation transcript:

February 22nd copyright2009merrydavidson Take out homework to be graded

MULTIPLY: b) factor quiz tomorrow!!!

FACTOR COMPLETELY: b) c) Factor quiz tomorrow!!!

TRIGONOMETRIC IDENTITIES An IDENTITY is a statement that two quantities are equal. Reciprocal Identities Write these in on NOTES for 1 - 3 Fill in #4 – 9 on WS using division. You should know the answer to 10, 11.

It should look like this……

Pythagorean Theorem Identities 12) 13) 14) Write these in on the WS. Fill in #15 – 20 using addition or subtraction.

It should look like this……

What major difference do you see between the reciprocal and Pythagorean identities? Pythagorean identities have a “squared” in it.

ADDING TRIG EXPRESSIONS 1) Find the LCD Using fancy form of 1, multiply each term by what is missing from the LCD. Combine to 1 fraction. Showing all of the work is what I will grade. Not just the answer.

ADDING TRIG EXPRESSIONS 2) Find the LCD Using fancy form of 1, multiply each term by what is missing from the LCD. Combine to 1 fraction.

3)

4)

5)

HW: WS 9-1