Friday

April 25, 2014

April 25, 2014

Posted by **Lucy** on Saturday, April 19, 2008 at 4:03pm.

A) sin^2 theta + cot^2 theta sin^2 theta

B) (sin^2 theta/1-cos theta)-cos theta

C) sec^2 theta + tan^2 theta

D) cot^2 theta sin^2 theta/cos^2theta

Answer: D

- Algebra II -
**Damon**, Saturday, April 19, 2008 at 6:42pmfor D I get

c^2/s^2 * s^2 /c^2 = 1 sorry

A gives

s^2 (1 + c^2/s^2) = s^2 + c^2 = 1

B gives (does not make sense the way you wrote it)

Maybe you mean

sin^2 theta/(1-cos theta)-cos theta

[s^2 -c (1-c)] /(1-c)

[ s^2 + c^2 -c] / (1-c)

(1-c) / (1-c)

1

C gives

(1/c^2) + s^2/c^2

= (1 + s^2)/c^2

not 1

**Related Questions**

Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...

Calculus - I wanted to confirm that I solved these problems correctly (we had to...

trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

trigonometry - can you correct the rest for me please? Express each as a ...

trigonometry - can you correct the rest for me please? Express each as a ...

trigonomtry - can you correct the rest for me please? Express each as a function...

trig - Hi, I need to find the domain and rnge of the following: 1. X= 1/2 (cos ...

math - I have a question I have been working on since yesterday and I am not ...