- #1

- 2

- 0

Here's what I did:

ABcos=-4

ABsin=9

sin/cos=-2.25

tan=-2.25

angle=-66?

I entered this and it says it's incorrect. What did I do wrong?

- Thread starter IDKFysics
- Start date

- #1

- 2

- 0

Here's what I did:

ABcos=-4

ABsin=9

sin/cos=-2.25

tan=-2.25

angle=-66?

I entered this and it says it's incorrect. What did I do wrong?

- #2

- 6

- 0

There should be an angle that its cos is - and its sin is +

angle: 180 - 66 = 114 degree

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