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 Get out a colored pen and last night’s homework.

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Presentation on theme: " Get out a colored pen and last night’s homework."— Presentation transcript:

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2  Get out a colored pen and last night’s homework

3  Quiz Friday over Trig!

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5  First we need to be in _____________ mode. (Always check before using Trig)  Go to the scratchpad  Hit the doc ▼ button  Click 7: Settings and Status  Click 2: Document Settings  Find where it says “Angle:” o Choose Degree from the drop down menu  Click “Make Default”  Select OK DEGREES

6  Second we need to know our ________________(θ). The calculator has information stored in it for every possible angle measure, so we can easily find the trig ratio for the problems below.  Find the trig button on your calculator (under ctrl)  Select the trig function you wish to use  Input the angle measure into the parentheses  Hit enter and round your answer to the nearest hundredth Reference Angle

7 ***Round to the nearest hundredth

8 1. Mark the _______________ angle (θ)…usually the one given – but never the right angle!  1. Label the two given ___________ in relation to θ (opp, adj, or hyp).  1. Decide which ________________ you can use from SOHCAHTOA.  1. Write the equation, using a ______________ for the missing side.   Set up a __________________ and solve for the variable (using cross multiplication) reference sides Trig function variable proportion

9 1. Mark the reference angle: θ = 34 2.Label the given sides in relation to θ: opp. and hyp. 3.Decide which trig function to use: Sine 4.Write the equation using x for the missing side 5.Set up a proportion and cross multiply

10 1.Mark the reference angle: θ = 75 2.Label the given sides in relation to θ: adj. and hyp. 3.Decide which trig function to use: Cosine 4.Write the equation using x for the missing side 5.Set up a proportion and cross multiply

11  Work with a shoulder partner  Cut apart the problem cards  Match each picture and equation with the corresponding scenarios given below

12  WS – Trig with a Calculator ◦ Odds Only  Quiz Friday!


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