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.

## Answer this Question

## Related Questions

- math-Trig - 1. Write the algebraic expression which shows Cos((ArcSin(4/X)), 2...
- please - Given tan Θ = - 8/5 and sin Θ < 0, find sin Θ, cos &#...
- Trig - Identies/equation, please help! - 2Sin(Θ+47°)=1 ΘЄ[0°, ...
- Trigonometry - 1. Find the exact value of the following (Think identity) Cos(2 ...
- TRIGONOMETRY HELP - Prove that: (tanēΘ)x(sinēΘ) = (tanēΘ)-(sinē&#...
- probability - Theoretical properties Let Θ be an estimator of a random ...
- math - Solve the following equations giving any roots in terms of pi in the...
- Probability - Let Θ1 and Θ2 be some unobserved Bernoulli random ...
- TRIGONOMETRY HELP - Prove that: cosēΘ - sinēΘ = 2cosēΘ - 1
- Trigonometry - Solve the equation cotΘ-abtanΘ = a-b Answer-tanΘ=1...