Mathematics
Senior High
α-β=π/4 になるのはなぜですか?
292 tan (a-3)=
tana-tanβ
1 + tanatan β
tanẞE
3
= 1
1
1+2.
-
最
3
tan (α-β) =1であるから,OKa-B
とき
a-B=
π
4
π
の
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