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Thursday, October 24 th

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Thursday, October 24th

Warm Up

A

Find x

Find y

5 x

y

45˚

45˚

B

C

20 m

)

20 / 40

Tan-1

40 m

x

Shrink yourself down and stand where the angle is.

Now, figure out which trig ratio you have and set up the problem.

50 m

15 m

)

15 / 50

Sin-1

x

Shrink yourself down and stand where the angle is.

Now, figure out which trig ratio you have and set up the problem.

17.2

9

7

23

200

400

When we are trying to find an angle we use (INVERSE) sin-1, cos-1,ortan-1.

- Sin B=.48482. Sin A=.5150
3. Cos A=.74314. Cos W=.6157

5. Cos A=.5878 6. Tan W=19.0811

7. Cos A=.42268. TanW=.5317

9. 10.

11.12.

13.14.

Complete 1-5