If cos o = 0.28 find tan theta/2​

Question

If
cos o = 0.28
find tan
theta/2​

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Sadie 2 months 2021-10-09T17:48:01+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-09T17:49:27+00:00

    Step-by-step explanation:

    cos(θ) = 0.28 \\ now \:  \\ tan ^{2} ( \frac{(θ)}{2} ) =  \frac{1 - cos(θ)}{1 + cos(θ)}  \\  =  \frac{1 -  {(0.28)}^{2} }{ {1 + (0.28)}^{2} }  \\  =  \frac{1 - 0.0784}{1 + 0.0784}  \\  =  \frac{0.9216}{1.0784}  \\ tan \frac{(θ)}{2}  =  \sqrt{ \frac{0.9216}{1.0784} }  \\  =  \frac{0.96}{1.03}  = 0.93

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