Posted by **Ram** on Sunday, March 15, 2009 at 12:29pm.

Trig Questions-

1. Write the algebraic expression which shows Cos((ArcSin(4/X)),

2. Angle If Csc(-Θ)=15/4?

2. - what quadrant is it in, find the sin(-Θ), Sin(Θ), Tan(90deg-Θ), Tan(Θ), csc(Θ), Sec(-Θ+360deg), Thanks

- Math-Trig -
**bobpursley**, Sunday, March 15, 2009 at 12:36pm
These are rather simple if you make drawings or sketches.

For instance on the first, if sin is 4/x

then the hypotenuse is x, the opposite side is 4, and the adjacaent side is sqrt(x^2-4). So now what is the cosine?

You can do this. We will be happy to critique your thinking.

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