# Cotangent

If the angle α is acute, and cotg α = 1/3. Determine the value of sin α, cos α, tg α.

Correct result:

sin α =  0.95
cos α =  0.32
tg α =  3

#### Solution:

$\mathrm{cos}\alpha =\frac{1}{\sqrt{{1}^{2}+{3}^{2}}}=0.32$

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