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rebeccaskell94 3 years ago Lol I might jsut be stupid but idk how to do this xD Find the value of the cot 10° using your calculator. IDK HOW D; It's my last question I don't have a cot button on my calc either if I'm supposed to and and

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1. Calcmathlete

do tan 10 then put 1 ÷ Ans

2. waterineyes

Firstly find tan10..

3. myko

cot=1/tg

4. Calcmathlete

Or you could do 1 ÷ (tan 10)

5. rebeccaskell94

oh. I am stupid. My bad. Thanks guys :D

6. waterineyes

Welcome dear..

7. agentx5

$\cot \theta = \frac{1}{\tan \theta} = \frac{\cos \theta}{\sin \theta}$

8. Calcmathlete

np :)

9. agentx5

^_^

10. waterineyes

going hard @agentx5

11. rebeccaskell94

:O AGENT D: -___-

12. waterineyes

I can make it more hard: $\cot \theta = \frac{1}{\tan \theta} = \frac{\sin(2 \theta)}{2\sin^2 \theta}$

13. rebeccaskell94

oh wait xD Is that tan^-1 or tan (10)

14. rebeccaskell94

lol "more hard"

15. waterineyes

tan10..

16. Calcmathlete

YES @waterineyes

17. Calcmathlete

Double angles rule!

18. rebeccaskell94

0.176?

19. waterineyes

@rebeccaskell94 i think now you are getting more confused..

20. agentx5

no no no not the same thing dear Rebecca! :-D $\tan^{-1} (\frac{opp}{adj}) = \arctan (\frac{opp}{adj}) = \theta$

21. rebeccaskell94

lol Agent your genius talents are commendable

22. waterineyes

Now use: 1/0.176

23. agentx5

Inverse tangent is cotangent, anti-tangent is arctangent. The latter returns and angle value in degrees or radians :-)

24. Calcmathlete

@rebeccaskell94 You forgot to do the rciprocal. Now. 1/0.176326981...

25. rebeccaskell94

5.671? o.o

26. Calcmathlete

THat's what I get :)

27. rebeccaskell94

oh dang.

28. waterineyes

May be.. Ha ha ha..

29. Calcmathlete

3:)

30. waterineyes

Can anyone find this without calculator??

31. Calcmathlete

o_O No idea...

32. Calcmathlete

Is Wolfram considered a calculator? XD

33. waterineyes

Can anybody think about finding the above value without using calculator?? Question changed to this one now..

34. agentx5

I can... I think... |dw:1343070912188:dw|

35. waterineyes

That is why I always say you Unique @ Kazem..

36. agentx5

Is that right @waterineyes ?

37. waterineyes

How do you find dimensions I never know that..

38. agentx5

Ah wait... |dw:1343071090394:dw|

39. agentx5

Whoops... And find dimensions with... anti-functions, arctan in this case.

40. waterineyes

According to you 1/6 is the value.. @agentx5

41. agentx5

or $$\tan^{-1}(6) \approx 80^o$$

42. waterineyes

But then answer changes...

43. agentx5

Erm, you switched the question here :-) "Question changed to this one now.."

44. waterineyes

I said you all to think how we can find tan10 without calculator.. And you know what??

45. mukushla

$$\tan 3x=\frac{\sqrt{3}}{3}$$ is better i think

46. waterineyes

You all are not thinking.. Instead you are finding.. Ha ha ha ha..

47. waterineyes

How?? I did not get that one..

48. mukushla

tan 30 =sqrt(3)/3

49. waterineyes

Oh.. How can we proceed further??

50. mukushla

after simplifying we have a degree 3 polynomial in terms of tan x but leave it ... not in the mood of simplifying that right now..haha o.O lol

51. waterineyes

I am getting faint.. Leave it from my side too..

52. mukushla

i love this sign o.O o.O o.O O.o o.O o.O hahaha....

53. waterineyes

It is looking nice Kazem..

54. rebeccaskell94

O.o o.O so many notifs xD

55. waterineyes

After all it is Great @rebeccaskell94 post.. Ha ha ha..

56. rebeccaskell94

lol I see this xD

57. waterineyes

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