問題60と問題61は、複素数の計算問題です。問題60は複素数の足し算と引き算、問題61は複素数の掛け算と二乗の計算を行います。代数学複素数複素数の計算加算減算乗算二乗2025/4/291. 問題の内容問題60と問題61は、複素数の計算問題です。問題60は複素数の足し算と引き算、問題61は複素数の掛け算と二乗の計算を行います。2. 解き方の手順問題60(1) (4+2i)+(3+i)=(4+3)+(2+1)i=7+3i(4+2i) + (3+i) = (4+3) + (2+1)i = 7 + 3i(4+2i)+(3+i)=(4+3)+(2+1)i=7+3i(2) (3−2i)+(2−i)=(3+2)+(−2−1)i=5−3i(3-2i) + (2-i) = (3+2) + (-2-1)i = 5 - 3i(3−2i)+(2−i)=(3+2)+(−2−1)i=5−3i(3) (2+3i)−(3+i)=(2−3)+(3−1)i=−1+2i(2+3i) - (3+i) = (2-3) + (3-1)i = -1 + 2i(2+3i)−(3+i)=(2−3)+(3−1)i=−1+2i(4) (3−i)−(1−i)=(3−1)+(−1+1)i=2+0i=2(3-i) - (1-i) = (3-1) + (-1+1)i = 2 + 0i = 2(3−i)−(1−i)=(3−1)+(−1+1)i=2+0i=2(5) (3+i)+4i=3+(1+4)i=3+5i(3+i) + 4i = 3 + (1+4)i = 3 + 5i(3+i)+4i=3+(1+4)i=3+5i(6) 6i−9i=(6−9)i=−3i6i - 9i = (6-9)i = -3i6i−9i=(6−9)i=−3i問題61(1) (1+3i)(2+i)=1∗2+1∗i+3i∗2+3i∗i=2+i+6i+3i2=2+7i−3=−1+7i(1+3i)(2+i) = 1*2 + 1*i + 3i*2 + 3i*i = 2 + i + 6i + 3i^2 = 2 + 7i - 3 = -1 + 7i(1+3i)(2+i)=1∗2+1∗i+3i∗2+3i∗i=2+i+6i+3i2=2+7i−3=−1+7i(2) (1−2i)(5+2i)=1∗5+1∗2i−2i∗5−2i∗2i=5+2i−10i−4i2=5−8i+4=9−8i(1-2i)(5+2i) = 1*5 + 1*2i - 2i*5 - 2i*2i = 5 + 2i - 10i - 4i^2 = 5 - 8i + 4 = 9 - 8i(1−2i)(5+2i)=1∗5+1∗2i−2i∗5−2i∗2i=5+2i−10i−4i2=5−8i+4=9−8i(3) (3−2i)2=(3−2i)(3−2i)=3∗3+3∗(−2i)−2i∗3+(−2i)∗(−2i)=9−6i−6i+4i2=9−12i−4=5−12i(3-2i)^2 = (3-2i)(3-2i) = 3*3 + 3*(-2i) - 2i*3 + (-2i)*(-2i) = 9 - 6i - 6i + 4i^2 = 9 - 12i - 4 = 5 - 12i(3−2i)2=(3−2i)(3−2i)=3∗3+3∗(−2i)−2i∗3+(−2i)∗(−2i)=9−6i−6i+4i2=9−12i−4=5−12i(4) (1+i)2=(1+i)(1+i)=1∗1+1∗i+i∗1+i∗i=1+i+i+i2=1+2i−1=2i(1+i)^2 = (1+i)(1+i) = 1*1 + 1*i + i*1 + i*i = 1 + i + i + i^2 = 1 + 2i - 1 = 2i(1+i)2=(1+i)(1+i)=1∗1+1∗i+i∗1+i∗i=1+i+i+i2=1+2i−1=2i(5) (2−i)(2+i)=2∗2+2∗i−i∗2−i∗i=4+2i−2i−i2=4+1=5(2-i)(2+i) = 2*2 + 2*i -i*2 -i*i = 4 + 2i - 2i -i^2 = 4 + 1 = 5(2−i)(2+i)=2∗2+2∗i−i∗2−i∗i=4+2i−2i−i2=4+1=5(6) (4+3i)(4−3i)=4∗4+4∗(−3i)+3i∗4+3i∗(−3i)=16−12i+12i−9i2=16+9=25(4+3i)(4-3i) = 4*4 + 4*(-3i) + 3i*4 + 3i*(-3i) = 16 - 12i + 12i - 9i^2 = 16 + 9 = 25(4+3i)(4−3i)=4∗4+4∗(−3i)+3i∗4+3i∗(−3i)=16−12i+12i−9i2=16+9=253. 最終的な答え問題60(1) 7+3i7+3i7+3i(2) 5−3i5-3i5−3i(3) −1+2i-1+2i−1+2i(4) 222(5) 3+5i3+5i3+5i(6) −3i-3i−3i問題61(1) −1+7i-1+7i−1+7i(2) 9−8i9-8i9−8i(3) 5−12i5-12i5−12i(4) 2i2i2i(5) 555(6) 252525