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simple math question?
In the math problem of the photo below, I get 1,496.6 I only get 56.6 by solving with Sin instead of Cos. I'm a bit confused.
I figured it out. My calculator is not able to solve cosine problems in the original form (I have to rearrange the equation). This must be a bug because tan and sin work perfectly with the original form.
5 Answers
- PopeLv 73 years agoFavorite Answer
In your comment to another contributor you make reference to an opposite side and an adjacent side. That suggests that your calculations apply to the three sides of a right triangle. If that is the case, and you have all three sides, then yes, you should get the same result by using any of the trigonometric functions. This assumes that you used them correctly. If you get different results, then perhaps it is not a right triangle at all. Did you check?
- husoskiLv 73 years ago
Those answers are the same! 1496.6 is 56.6 + 4*360, so you have simply found another name for the same angle.
I have no clue as to how you got that result, but once you reduce it to whatever principle range you're using for angles (0 to 360, or maybe -180 to +180) then you'll have the same answer.
- davidLv 73 years ago
equation has cos (theta) = ===
WHY would you ever use sine to solve this equation??? not logical
... use inverse cosine .. just like shown.
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