Câu hỏi

Điểm M " src="data:image/jpeg;charset=utf-8;base64,iVBORw0KGgoAAAANSUhEUgAAAFsAAABCCAYAAAA476rKAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAABBwf/jmAAABd5JREFUeNrtXH9kVVEcP2YmmZhJJhmTmUlikiQTyUxmRp7JJJFJksTMzCSRJM/+iMzMZGLmyUzGzEySSCbJRJIkM2YyM8+oe3TiOn3vu5/z477veXQ4/7x37r2f7/ed9z2f768rhNsYi+YvD/OJCHcseJDvrA8gl6M5E82X0dxxAPMsUEX3Oyp5M5qFaLZmAe5INIej+cMQ1EKAim6K5paFgtejORLN5nIBrYvmGwOAGwEq+5WFoueV7GUf5w1A7gam6AELRX+M5h4uwOcMwe4PRNHSvhYtlH2OE/TlSgKrRlU031so+jM38GeGgC8EoOw7lqzjLjdwU0ZygxnvcQeKd4ITeJsF4DFGvPJgWyUOvIpgUkMaIMThmWHEmyfYEcpI2B2yZQJQGujXTFjbCSzSdt8DlX2RU9G1amfEdwlCA38yYf2q4VhRrOQtqOwGTmXnNDASdA0IvKrMWMcJ8yFDDvUg3hVuEzKRQIsQu32Y2cMdTtgwSfNBaJSvXX3+CQDfWSaM9QTOFQsf4SynonXKtx0zDbMA+FyZcM5ozy1qYdA1AOs2g9krSfnidG4SEGC4DBh7iecOxr4/Bu7qArcJWdIA9ce+GwEEmMgYX4NyQuLPfKOtuQUquz8kyidnY+z7iwHslnnC2WpOWZM0mzmVnUuJhCHx7Q8Z4qNSXLe0NdVgeJU9yqdTvsfa9y3goZPFaFJOU5rH2gXu6sehUb5uYtcggtRkgO2l9owt9QPoYxTE2B0S5SsmKA1JoB71jO028YzrCWtXAXzFjDaENeVbTFiHxBvOe8TVQniuywlrD4K7ejE0yjeQsK4ACNPnCVOV8gp189GYsB5N4w2ERvnawEM0y3jDHUNujLrobSFRvvUSaxGHYdIDpuPEBlhI+Rf8BLCthUb5pgx+GGrOOuKpIQ66TWWTk8YJcFdPcitbp3y9JdZ2AAJ9c8STJ+55JeWaEVDZOU5FU4nd+pTYRJpAOw54Tgu6JMyUhydVbdVxKlunfO8AhoDsIJsyLirFtSHS01Z7CfseUo40kfLdB65BDqJ2CyxjljSyR1RAIQ5F+ZDMxWIG7nAncY/nDj+Srw2QGeVDMxfTgGCXDHBQKS5pPg6A138WFZCV0SlfweNOMomqUT9eL3hts6iQQpwfwi5z0e9RuAvEtdMGMlwDlX01NMqHZi6QA+kFcB8qxbWWQj318RxU9qGQKJ9J5gKpjkKKFeeI63oMA1VIVuYDtwlZcrCxtcK97YMyRVOGMpwBd3U+NMpnStUQJyLJHDQSXN3UfMiBFk52cio7R+xC08zFurBv+6Bc6y4LOZBEhjQz1SFRviWLe8wBgvaAIVqbWpM6cFfPhUb5Bi3ugQTq9bYPKsX13TI4hBZO3gyN8tn0k+SFWdtHlQpy6Ws6LOVAszKtnMoeEn76SfoAQePOCRVvHvf476Tm19Aon60b2w0I+0qtPUawF5lg2Gf57KPgrp7gVDRF+Wz7SU4KrO1Dshyqa8ulLhotnOzhVDZ1qNj2k+wBBX4k/Jd+IYWTuw7/nEwon2s/ic37Sb6of5jtQAsnl0OjfK71HV8slO0awEffFDHMqeg2Aw8PHbOGih71IEdeVEB79AjhxrpmLiYNFP1J+HmXB9Iizd4erTsUsx7ueddA2Sc9PK9BVEBWpkmUbvixHX2g8A89yYEWTrK2Rw+JbMp6kcNqVfh7FdA0qOx6TmVTzaIHPNy3VZSvYhSlfO85FU29saDo6d5p/ez3PMqBmqxxTmXPi2zfnrAtkvN+PoP26BsW2LLop4T/wsc0lvPXVfZZcN5rwHoucSi6VpRu5unw9Byq7cNnTV2r+LfcIaiWu71AsEaGOBszirf4KvOSYdw1Yeal7qh/dOajWh0kqyAwabtl30qLwzMHxb8vVnF1XGThu82rPeM4RpXL7r2+T/YJLgm7tzTGu7CkV2n6auach+DPTfXsdQf8pXb6O2Xunoo/tSZOY84jOFOm0unBfBQyUHJQB+j/YTF+A3WJG/PqOfDcAAAASXRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtaT5NPC9taT48L21hdGg+21i6GQAAAABJRU5ErkJggg==" style="width: 13.33px; height: 9.33px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title="M"> trong hình vẽ bên là điểm biểu diễn số phức z " src="data:image/jpeg;charset=utf-8;base64,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" style="width: 6.67px; height: 8.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title="z"> tìm phần thực và phần ảo của số phức z " src="data:image/jpeg;charset=utf-8;base64,iVBORw0KGgoAAAANSUhEUgAAAC4AAAAzCAYAAADo8TpyAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAArbJhr3gAAAplJREFUeNrVmT9I21EQx48gUiQERCSIgxBKKEVKQYqDSBCkiDgEFynSwaWU4tQldCjiJk4OIkgQBxGhiIgE6VJCCQ6FDkEcuoRSShGXUkqREIT0HjnxiPn9S+738rsv3Pgun98v7929+/4A/Gkco245jkBAK10AfyEBXrQM/V4Cug/jxiL0Pghp3iJ0CaNHCjxvCfo7xgAIqtLirzT/wsMO384Sy/mb8okpzZJfYowJ5Z3EqFFec36mQFivKfk/jMdCOUcwrtgLWYIQdETJc0L54hgXDHotDOgYRpW2SK9QzgKDPoaQZPb3uVQzQK0z6C8YD0CBXjLoXxhJDdATrIL8FTzkoWq4qYLMaIA2d5wyg14GJTpm0JtaoFcZ9KkW6AUGfU5NJ/J6hnFN0Fd0OCOvIeqydYIf0wBtuuBXtkWyWvb1Bwad0wLNHYAdLdBZBl2UnBfD1FNWQb5h9GuAHqRb3m3ZS2mANkPFGUFX6fanQntsXy9qgc6BsE1mQ3MM+kAL9ChNL3Xa371aKsgPuLPJBjVAm4ZSgjub7JGWLbILIdpkYelt02FUMRDMwH0b+IaurmYsS0cR2kD9AW8/+xPdVyIhc1GqQDBDfrXb0DF6i+1+2ou1+bvDdPDbvhJvg92PTvGmycnYdIFt5zcg8x0nyNh26JDjnd8E02zRZ4wtaNhleTJzagHhMz4LgNP6il/wj9Dwq0dduucCPZQf8J8YCY/fnHVZX/MLnghwsEz5K/iA97o9DrisvQyzApmvZmUP+FceOZxegBWnYNmlWZlO+9xlbcZhjTXjP0lvqRX8tYurFeukokgPGycOD3BITeZ2AEm1eNiVbnfgJ3Qd9ltGy3RmIqM4uQDGFbigbVOlEdC4XhudWBv/Ad9q7vTOL0wEAAAASXRFWHRNYXRoTUwAPG1hdGggeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzE5OTgvTWF0aC9NYXRoTUwiPjxtaT56PC9taT48L21hdGg+oVJRbgAAAABJRU5ErkJggg==" style="width: 6.67px; height: 8.00px; margin-left: 0.00px; margin-top: 0.00px; transform: rotate(0.00rad) translateZ(0px); -webkit-transform: rotate(0.00rad) translateZ(0px);" title="z"> .