Question

proszę o rozwiązanie​

Answer 1

Odpowiedź:

2.14

S = 2d(n- 2) = 2dn - 4d

S - 4d = 2dn

n = (S - 4d)/2d

2.15

I = (E/(R + r)

I * (R + r) = E

IR + Ir = E

Ir = E - IR

r = (E - IR)/I

2.16

S = (a + l)n/2

2S = (a + l)n

2S = an + ln

an = 2S - In

a = (2S - In)/n