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# Trigonometry quick question

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1. How would you find the angles using the quadrant method when given a negative number like tanx = -3
2. Don't bother with all that.

Just type into your calculator and then add or subtract multiples of 180 degrees.
3. (Original post by Mr M)
Don't bother with all that.

Just type into your calculator and then add or subtract multiples of 180 degrees.
Thanks that's a much easier method, we got taught that we have to use cast diagrams
4. (Original post by IShouldBeRevising_)
How would you find the angles using the quadrant method when given a negative number like tanx = -3
by using the negative axices.
5. (Original post by Mr M)
Don't bother with all that.

Just type into your calculator and then add or subtract multiples of 180 degrees.

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