Mathematics, 29.09.2020 14:01, jeieiejej

Seja ꞵ ∈ [, 3/2[ tal que cosꞵ = -1/3. Determine o valor de tgꞵ.

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Seja ꞵ ∈ [, 3/2[ tal que cosꞵ = -1/3. Determine o valor de tgꞵ....