L21_blanks - Day 25 Lecture 21 for 4/07/2011 Equations is 0...

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1 Day 25 Lecture 21 for 4/07/2011 Equations L19 – Don’t Forget the Basics 3. Pythagorean Identities: L20 – STEPS for Simple(r) Trig. Equations 1) First, Isolate the trig. function. 2) Solve for the angles in just one cycle. 3) Add “ K times the Period “ to your solution to make the general solution . This is a formula that specifies all solutions. Sometimes… 4) You may need to make a list by plugging in values of K. 5) You may be able to combine two solution formulas into one. Slide: 2 of 12 is 0
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2 L21 – We’re at a Cross Roads! Ex: Find the value of for which the graphs of and intersect. Slide: 3 of 12 is 0 L21 – Don’t Miss Out on Important Factors! Ex: Solve the following equation : The Wrong Way : Dividing both sides by Sine of Theta. Doing this will ________________ some solutions. The Right Way : Collect on one Side then ____________. Slide: 4 of 12 is 0
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3 L21 – Review Quadratic Forms An equation is said to be a quadratic form if and only if the equation can be rewritten as…
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L21_blanks - Day 25 Lecture 21 for 4/07/2011 Equations is 0...

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