## anonymous 5 years ago how to plug in trigonometry problems into a TI-83 calculator. Ex: sin X = (11/26)

1. anonymous

well i got 2.36 repet ok

2. anonymous

know x is 2.36

3. anonymous

man ok hold on

4. anonymous

wait its sin X = (11/26) my teacher key sheet said its 26?

5. anonymous

i mean sin X = (11/25)

6. anonymous

I just need help plugging it to a calcutlator

7. anonymous

calculator*

8. anonymous

sine is 26

9. anonymous

do u know how

10. anonymous

tho

11. anonymous

no i dont know how to plug it into a calculator, thats the only part i need help on. I have a TI-83

12. anonymous

26x=(11/26)

13. anonymous

try that

14. anonymous

then tell me what happen

15. anonymous

woah i got 0?

16. anonymous

i just need help from a questions that needs to plugged in but i dont know how, from sin X = (11/25) how do i plug it in? from there it should be 26

17. anonymous

wee the x is put the 26

18. anonymous

lol srry i mean were

19. anonymous

what is a TI-83?is that some special kind of calculator?...if it has shift all you have to do is press shift then sin(11/25)...

20. anonymous

no that is the problem

21. anonymous

what do you mean dkglenn?

22. anonymous

ti-83 that is what he hase know ok but he need the sin and the sin is 26 but he need to plug it in the calculater.

23. anonymous

that he does not know how

24. anonymous

did u get it temmayy

25. anonymous

i think he did lol

26. anonymous

nah, im still trying to plug in the numbers into my calculator to end up with 26, cause the answer sheet says 26 but everything i tryed it still hasnt worked, the problem is sin X (11/25) int he end X will be 26

27. anonymous

does this calculator have a sign button?

28. anonymous

i meant 'sin'

29. anonymous

yes

30. anonymous

then you must hit the yellow button that says 2nd before you hit the sine button...2nd is equivalent to shift...did you try that?

31. anonymous

OHH SNAP THANKS MAN!

32. anonymous

33. anonymous

God_in_me is correct - he is showing you how to access the sin^(-1) function. sin^(-1) is the inverse function of the sin function. It is also know as the Cosecant. So to solve your equation this is what your actually doing. "Solve for x... $\frac{1}{\sin}*\sin(X)=\frac{1}{\sin}*\frac{11}{26}=(\sin^{-1})(11\div26)$

34. anonymous

It's kind of like dividing both sides by 5 in this equation. $5x=100$ But you need to know how to find the inverses of your three main trig functions.