Hint: ANSWER: Tuesday February 13 th 2001. FACTORSET EQUAL TO ZEROSOLVE.

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Trigonometric Equations of Quadratic Type. In this section we'll learn various techniques to manipulate trigonometric equations so we can solve them.

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Presentation transcript:

Hint: ANSWER: Tuesday February 13 th 2001

FACTORSET EQUAL TO ZEROSOLVE

Which replacement for cos2x will you use?

LCD METHOD!!

In Closing….. HW: pg620: 26,28,29,30,38 Test on FRIDAY! Review 10 th period Tues, Wed, Thurs

ANSWER: Wednesday Feb 14 th, 2001

Day 1 Trig Equation Review Go over HW Practice Moving Angles around the circle Regent’s Part II Exam Practice Problems

Practice Moving Angles around the Circle. Find all the angles whose reference angle is 36 degrees

Practice Moving Angles around the Circle. A solution to your problem is –25 degrees and you are working with sine. Find the positive angle answers T S C A

Practice Moving Angles around the Circle. A solution to your problem is 110 degrees and you are working with cosine. Find the positive angle answers. 205 T S C A 110

Part II10 point problem What needs to be replaced? What technique will you use to solve this?

Part II10 point problem Which formula is most appropriate to use? Nearest Ten Minutes

Part II10 point problem Nearest Ten Minutes

Look back at the last three problems and find these three KEY techniques: Replacing Using the Quadratic Formula

In Closing….. HW: pg 623:7-14 Test on FRIDAY! Review 10 th period Tues, Wed, Thurs

ANSWER: leave as a function of a positive angle. Thursday