Question about Sharp el-531x scientific calculator

I am using sine but my calculator is in radian mode and I need it to be in degree help please

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• Sharp Master

Hit the DRG key to the right of the pi key. It should cycle from radians to gradians to degrees. A "D" should appear at the top of your screen rather than the current "R".

Good luck.

Paul

Posted on Mar 26, 2015

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Posted on Jan 02, 2017

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## Related Questions:

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When the angle unit is in radians
When angle unit is in degrees
sin^-1(0.185)=10.60283581
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In the following screen captures the sine of the values is calculated with the unit specified inside the formula (degree symbol and radian symbol are inserted to show you the unit). In the last calculation the value of the sine is practically 0.184
Remember that when angle is in radians, for very small angles (less than 10 degrees), sin(x) and tan (x) are about equal to the value of the angle in radians

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It depends on the unit of measurement. The sine of one radian is about 0.84. The sine of one degree is about 0.017. The sine of one grad is about 0.015. From your numbers it looks like your calculator is set to grads when you want it to be in radians (and are you sure you want a negative number for the sine of one?).

Press the DRG key to cycle through the angular modes. One of the annunciators at the top of the display will light to indicate the current mode.

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The sine of 0.5 degrees is about 0.00872, which your calculator may be displaying as something line 8.72 times ten to the negative 3. Look to the far right end of the number: do you see "x10-3" with the "-3" superscripted? In that case, again your calculator is giving you the correct answer.

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The sine of 90 radians is about 0.89, as your calculator shows. If you want the sine of 90 degrees, change the angular mode to degrees by pressing MODE, use the cursor keys to highlight "Degree" on the third line, press ENTER then 2nd QUIT.
You're calculating (8^1)/3 which is 2.6666667 . If you want the third root of 8, press 8 ^ ( 1 / 3 ) ENTER .

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That is the correct answer if the angle is 60 radians. If you want to work in degrees, press MODE to bring up the mode screen. Use the arrow keys to highlight "Degree", press ENTER, then 2nd QUIT to exit the mode screen. Now 12 divided by the sine of 60 degrees will give about 13.9.

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This can be done in one step by using diamond ENTER instead of ENTER when first calculating the expression. For example:
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(easy to remember, 360deg in a circle, 2pi radians in a circle)
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