Mathematics
Senior High
Solved
ここからどう変形しますか、、？
B=180°-
b
余定理より(30)=6÷6-2.66
54:6+36-12060
54=b²³ +76-6b
b²6b-18 = 0
( X-9)
F
余定理により、
2²³ = (²+ (√²)²=-2₁ C² √2 cos 45°
整理して、22㎝-2:0
(c
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