AN UNBIASED VIEW OF TAN

The cosine of an angle has An array of values from -1 to one inclusive. Under is actually a table of values illustrating some critical cosine values that span the complete selection of values. Anglee i x = cos ⁡ x + i sin ⁡ x e − i x = cos ⁡ x − i sin ⁡ x . displaystyle start off aligned e^ ix &=cos x+isin x[5pt]e^ -ix &=cos x-isin x.fi