Question

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高二數學，32、33求解！

32、設O<< 90°,且sec + tan0 =3,則sings
cosa + tan o=3
sr
9
co
coso
of
33、已知,y皆為實數,品 ttan9-2
(1)ồ secx+tant=2 9 secx-tanx=
(2) * 101 cosx +siny=102, W 2012 sinx – 1911 cscy=.
secx + 2secx tans + tan²x = 4
o
52
「+
12 16 192
功

三角函數

Answer 1

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