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a + d = 32
a + b = 20
b + c = 16
ãããŠãc + d = 32 + 16-20 = 28ãç°¡åã«ååŸã§ããŸã
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a + d = 32
a + b = 20
b + c = 16
ãããŠãc + d = 32 + 16-20 = 28ãç°¡åã«ååŸã§ããŸã
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2aãæ£æ¹åœ¢ã®èŸºãšããOããé«ãxãyãïŒ2a-xïŒããã³ïŒ2a-yïŒãçç¥ããŸãã
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ax / 2 + ay / 2 = 20
ay / 2 + aïŒ2a-xïŒ/ 2 = 16
ax / 2 + aïŒ2a-yïŒ/ 2 = 32
ax / 2 -aïŒ2a-xïŒ/ 2 = 4
ay / 2 -aïŒ2a-yïŒ/ 2 = -12
ax / 2 + ay / 2 = 20
ax = a ^ 2 + 4
ay = a ^ 2-12
a ^ 2 + 2-6 = 20
æ€çŽ¢ïŒaïŒ2a-xïŒ/ 2 + aïŒ2a-yïŒ/ 2 = 2a ^ 2-ax / 2-ay / 2 = a ^ 2-2 + 6 = 24-2 + 6 = 28
2aãæ£æ¹åœ¢ã®èŸºãšããOããé«ãxãyãïŒ2a-xïŒããã³ïŒ2a-yïŒãçç¥ããŸãã
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ax / 2 + ay / 2 = 20
ay / 2 + aïŒ2a-xïŒ/ 2 = 16
ax / 2 + aïŒ2a-yïŒ/ 2 = 32
ax / 2 -aïŒ2a-xïŒ/ 2 = 4
ay / 2 -aïŒ2a-yïŒ/ 2 = -12
ax / 2 + ay / 2 = 20
ax = a ^ 2 + 4
ay = a ^ 2-12
a ^ 2 + 2-6 = 20
æ€çŽ¢ïŒaïŒ2a-xïŒ/ 2 + aïŒ2a-yïŒ/ 2 = 2a ^ 2-ax / 2-ay / 2 = a ^ 2-2 + 6 = 24-2 + 6 = 28
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