Entries from 2022-09-21 to 1 day

circle

circle ヲ y = ax+b デ分割スル時、area ヲ求メヨ。 T.theodor 2022.9.21.

ellipse

ellipse ヲ y = ax+b デ分割スル時、area ヲ求メヨ。 T.theodor 2022.9.21.

function

y = −x2 x = −x2+1 T.theodor 2022.9.21.

Geometric sequence

ｒ=1−1/a 1+Σ(1−1/a1−1)n-1 =1−a/a−1 −1−1/(a−1)an-1 lim 1+Σ(1−1/a1−1)n-1 = 1−a/a−1 ( n→∞ ) T.theodor 2022.9.21.