Question

A function value and a quadrant are given. Find the other 5 function values. Give exact answers.

cot theta=2, Quadrant 1.

Okay so once I did the math, for sin, I got squareroot5/5

Cos theta=2squareroot5/5 and tan as 1/2. It keeps saying my answer is wrong. What am I doing that's incorrect? If it's in quadrant 1, the values should all be positive right?

Answer 1

Does it say anywhere how they want the answer: fraction, decimal, etc.

Answer 2

It says to use radicals as needed. So fractions would be the preferred method.

Answer 3

You have the correct answers.
Try without rationalizing the denominator. \(\large \sin(\theta) = \frac{1}{\sqrt{5}}\)

Answer 4

On the program I use, we're not allowed to keep the radicals on the denominator. So I'm not sure what's wrong with my math.

Answer 5

You have the correct answers. Maybe you are entering it wrong. Are you using the word square root instead of clicking on something that will insert the radical sign?

Answer 6

Is it saying even tan(theta) = 1/2 is wrong?

Answer 7

WOW. Okay so I just checked it and what I inputted and what the program listed as the correct answers are the same. Yet it marked me as wrong. I think I'm just going to show this to my professor and ask if she can give me some form of credit. Thank you for checking my work!

Answer 8

You are welcome.