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22 April, 20:28

Tan (x) = - 8.9. What is cot (90° - x) ?

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  1. 22 April, 23:40
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    cot (90° - x) = - 8.9

    Step-by-step explanation:

    recall that one of the co-function identities is

    tan θ = cot (90° - θ)

    if this is the case, then

    cot (90° - x) = tan x, which is given as - 8.9

    hence, cot (90° - x) = - 8.9
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