tomektomeknyc one year ago How to solve it: Given cos 6 theta = 4/5, P 6 theta is in Q1, tan 6 theta = ? a) 3/4 b) 4/3 c) - 3/4 d) - 4/3

1. myininaya

what does the P mean?

2. myininaya

I will leave you with the following: |dw:1388491733745:dw| Find tan(6theta) using the above picture

3. tomektomeknyc

Ok , thank you, i am not sure about P

4. myininaya

So P is certainly there in the problem? It made no sense to me to include it so I didn't.

5. myininaya

do you know how to find tan(6*theta) using the pic above?

6. tomektomeknyc

I will need to use one of the formulas that allow to calculate tan if I have cos given, or to calculate the third angle from Pythagorean theorem and then use it to calculate tan

7. myininaya

the third side and you will use the definition from tan which is opp over adj, right?

8. tomektomeknyc

right

9. tomektomeknyc

Thank you very much for your help

10. myininaya

np

11. Haseeb96

|dw:1388539331469:dw| |dw:1388539436553:dw| the answer is tan6 theta = 3\4

12. Haseeb96

A ) 3\4 is the correct answer

13. tomektomeknyc

Thank you so much

14. myininaya

@tomektomeknyc I hope that you were able to find the answer before @Haseeb96 gave you the answer. I really hope you had the chance to see if you could get the answer first rather than someone just handing it to you.

15. tomektomeknyc

I am checking it now, I will make sure I get there, and the answer is just to make sure I did it right

16. Haseeb96

@myininaya is able for Medal ....

17. myininaya

The way he suggested is one way to look at it. You can straight up use one the trig Pythagorean identities. I sorta like using the visual I suggested.