Wyznacz  kąt ostry α , wiedzac ze ;   log sin α + log4 =log80 - log40

[latex]logsin alpha =log80-log40-log4[/latex] [latex]logsin alpha =log(80:40:4)[/latex] [latex]logsin alpha =log frac{1}{2} [/latex] [latex]sin alpha =0,5[/latex] [latex] alpha =30[/latex]