The radius of the circle in the picture provided is one unit. Express the lengths OA, AB, and DC in terms of x.

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- Oct 18th 2013, 09:52 AMnycmathExpress the lengths in terms of x
The radius of the circle in the picture provided is one unit. Express the lengths OA, AB, and DC in terms of x.

- Oct 18th 2013, 10:19 AMPlatoRe: Express the lengths in terms of x
- Oct 18th 2013, 10:54 AMnycmathRe: Express the lengths in terms of x
No coordinates given in the problem. I always make an effort. Please, read my entire signature.

- Oct 18th 2013, 12:19 PMPlatoRe: Express the lengths in terms of x
- Oct 18th 2013, 02:49 PMnycmathRe: Express the lengths in terms of x
Is the length BA cosx?

Is OA sinx?

Is OB the hypotenuse 1?

I was not able to determine the coordinates for A and D. - Oct 18th 2013, 03:08 PMHallsofIvyRe: Express the lengths in terms of x
You say 'express the lengths in terms of x' but when your picture shows "x" only as the x-axis, not as a length.

- Oct 18th 2013, 03:26 PMPlatoRe: Express the lengths in terms of x
- Oct 18th 2013, 03:35 PMPlatoRe: Express the lengths in terms of x
- Oct 18th 2013, 06:11 PMnycmathRe: Express the lengths in terms of x
Thank you, Plato. I will work on this more on my next day off, which is Monday. This question is from a chapter titled Right-Triangle Trigonometry. A very cool topic.

- Oct 19th 2013, 01:46 AMnycmathRe: Express the lengths in terms of x
Someone please report jianfe to site administrator.