How Should You Correctly Input Trigonometric Ratios in a Calculator?

[junkie_ball]

Hi,

I have a simple question i am working a tension query and need to do some trig calculations. I know the equation i need is below.

θ = Sin$^{}-1$ 0.6/3

When i type this in the calculator as shown above i get an answer of 12.29 although when i enter it in the calculator using brackets around (0.6/3) i then get an answer of 11.54 which one would be correct? I just need to ensure i am entering into the calculator correctly.

 

[PhanthomJay]

Hi,

I have a simple question i am working a tension query and need to do some trig calculations. I know the equation i need is below.

θ = Sin$^{}-1$ 0.6/3

When i type this in the calculator as shown above i get an answer of 12.29 although when i enter it in the calculator using brackets around (0.6/3) i then get an answer of 11.54 which one would be correct? I just need to ensure i am entering into the calculator correctly.

The answer depends upon whether you are looking for $(sin^{-1}0.6)/3$ or $sin^{-1}(0.6/3)$ I suspect you are looking for the latter, are you??