Difference between revisions of "Remember the Trigonometric Table"
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# Fill in the cotangent column.<br><br>Simply copy the entries in tangent column in reverse order into the cot column. This is valid because tan x° = sin x° / cos x° = cos (90-x)° / sin (90-x)° = cot (90-x)° for any x. | # Fill in the cotangent column.<br><br>Simply copy the entries in tangent column in reverse order into the cot column. This is valid because tan x° = sin x° / cos x° = cos (90-x)° / sin (90-x)° = cot (90-x)° for any x. | ||
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== Tips == | == Tips == | ||
