# If #cost=3/4#, what is #cos(t-pi)#?

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- If #A+B=315^0#, then what is the value of #(1-tanA)(1-tanB)#?
- A triangle has sides A, B, and C. The angle between sides A and B is #(5pi)/12#. If side C has a length of #9 # and the angle between sides B and C is #pi/12#, what is the length of side A?
- A triangle has sides A, B, and C. Sides A and B have lengths of 9 and 8, respectively. The angle between A and C is #(13pi)/24# and the angle between B and C is # (pi)24#. What is the area of the triangle?
- What are the components of the vector between the origin an the polar coordinate #(6, pi/12)#?
- What are the components of the vector between the origin and the polar coordinate #(10, pi/4)#?

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