+0

# Question about finding the sin of a number on a scientific calculator

0
118
1

I don't understand how to get the sin of .5.  My instructor says that the sin of .5 is 30 but I am not coming up with that.  I am very frustrated!

Guest Aug 1, 2017
Sort:

#1
+91229
+2

I don't understand how to get the sin of .5.  My instructor says that the sin of .5 is 30 but I am not coming up with that.

Hi I hear you frustration :)

It is the other way around

sin of 30 degrees is 0.5

If you want to go backwards. You have the answer 0.5 and you want to know sin of what =0.5 then you have to use

Inverse sin 0.5 = 30degrees         displayed as       \(sin^{-1}(0.5)=30^\circ \)

OR    arcsin 0.5 = 30degrees       displayed as        \(asin(0.5)=30^\circ\)

So on this calc (and most other calcs) you press     [2nd] [sin^-1]0.5 =

on this calc you can also just type in   asin(0.5)=

Some calcs need the brackets others don't

BUT

Make sure you calculator is set to degrees.

On the web2 calc there is a angle toggle at the bottom so you can set it to degrees or radians :)

Melody  Aug 1, 2017

### 8 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details