August 2018 1 85 Report
Oblicz miarę kąta ostrego β i wynik podaj z dokładnością do 1° gdy:
a)3sinβ=3/4
b)2sinβ=1,3820
c)3cosβ=3√2/2
d)3cosβ=2,511
e)cosβ=√5/5
f)1+tgβ=12,85
g)(sinβ-1/2)(tgβ-1)=0
h)(cosβ-3/4)(sinβ-√3/2)=0
i)cos²β-3=0
j)cos²β-1/4=0
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