Oblicz : ( 2 i 1/3 + 4 i 5/18 ) * ( 36/25 - 3i 3/10) = ...
Szybko ..
(2 i 6/18+4 i 5/18) * (1,44-3,3) = 119/18 *(-1,86)=119/18*(-1 i 43/50) = 119/18*(-93/50)= 119/6 * (- 31/50) = - 3689/300 = - 12 i 89/300.
(2¹/₃+4⁴/₁₈)*(³⁶/₂₅-3³/₁₀)=
(2⁶/₁₈ +4⁴/₁₈)*(⁷²/₅₀ - ¹⁶⁵/₅₀)=
6¹¹/₁₈ * (-⁹³/₅₀)=
¹¹⁹/₁₈ *(-⁹³/₅₀)=
¹¹⁹/₆ *(-³¹/₅₀)=
-³⁶⁸⁹/₃₀₀=-12⁸⁹/₃₀₀
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(2 i 6/18+4 i 5/18) * (1,44-3,3) = 119/18 *(-1,86)=119/18*(-1 i 43/50) = 119/18*(-93/50)= 119/6 * (- 31/50) = - 3689/300 = - 12 i 89/300.
(2¹/₃+4⁴/₁₈)*(³⁶/₂₅-3³/₁₀)=
(2⁶/₁₈ +4⁴/₁₈)*(⁷²/₅₀ - ¹⁶⁵/₅₀)=
6¹¹/₁₈ * (-⁹³/₅₀)=
¹¹⁹/₁₈ *(-⁹³/₅₀)=
¹¹⁹/₆ *(-³¹/₅₀)=
-³⁶⁸⁹/₃₀₀=-12⁸⁹/₃₀₀