Mathematics
Senior High
かっこ1とかっこにを教えていただきたいです!
2286 次の等式を証明せよ。
一) -
Tπ
(1)" sin(0+)cos(0+x)+sin(-0)cos(--0
)cos(0+x) + sin(-0)cos(
-1
2
3
(② cos(0-2:)-cos(一の) +sin( -0)+sin(ェ+0)=0
+ sin
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