Mathematics
Senior High
至急です！2,3の答え教えてください💦
を求めなさい。 [参考 教科書 P.38~39]
(2) O(0, 0), C(4, -3)
2
(3) D(4, -4), E(−1, 1)
OC = √(4-0)² + (-3-0)
=√16+9=25
(0<>0)
DE = √54-(-1)3 +6²-4-19²
125+25
=
=5/2
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