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Trigonometric Values – Day 1
Sine/Cosine/Secant/Cosecant
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Redefine the wrapping function values
Instead of we will now think of the wrapping function as
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WE KNOW THEREFORE
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Now it’s your turn. To find each trig value: Find the wrapping function value Choose the appropriate coordinate
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We can’t forget the negatives either……here we go:
So when dealing with negative ‘arclengths’ The value of the cosine (cos) remains unchanged The value of the sine (sin) will change Now try these three……
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Next a little arithmetic review:
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We define and
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Ten problems…two minutes…answers only.
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Ten problems…90 seconds…answers only.
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Ten problems…90 seconds…answers only.
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