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There are a few ways. First, there are a multitude of trigonometric tables which list the sines and cosines of a variety of values. if you now one trigonometric value of a number, you can find all the others by hand, and you can also use a Taylor series approximation to find a fairly accurate value. (In fact, many calculators use Taylor series to find trigonometric values.)
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Earn +20 ptsQ: How do you find trigonometric ratios without a calculator?
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How do you find trigonometric ratios of angles greater than 90 degrees?
subtract 90 from it and find the trig ratio of that and it will be equal to the trig ratio that is over 90 degrees
How do you find log6?
Nowadays you cannot do it without a calculator.
How do you find the inverse tangent without a calculator?
You cannot.
How do you find the length of a cube without a calculator?
Use a ruler
How do you know the angle without using a calculator?
To find an angle without using a calculator, you will need to use a trig identity. Determine which angle it is and use its corresponding trig identity.
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