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☆ Now Let's find value of sin A, cos A and tan A,
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- sin A = Perpendicular/Hypotenus =

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- cos A = Base/Hypotenus =

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- tan A = Perpendicular/Base =

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The line is called the directrix. Here we have a vertical directrix, so a parabola sideways from usual.
Geometry is best done with squared distances. The squared distance from an arbitrary point (x,y) to the vertical line x=2 is

We equate that to the squared distance of (x,y) to the focus (-2,0):



We could call that done. A more standard form might be
Answer:
C. 1 4 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
29 5x+8+x+4=90
6x=78
x=13
30 3x-7+11x-1=90
14x=98
x=7
31 3x+x+8=180
4x=172
x=43
32 6x-1+5x-17=180
11x=198
x=18