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A calculator able to solve the simultaneous linear equation with more unknowns is disclosed. Its calculation method includes directly inputting said equations by input device, judging of the equationconforms with the grammer by grammer judger, calculating, and outputting onswer by output device. Its...
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2 Without using a calculator, solve, for r and y, the simultaneous equations.[4] 8^5÷2^1=64 .3^4*(1/9)^(1-1)=81 3 ×=81. 相关知识点: 试题来源: 解析 8^x÷2^y=64 = 2^(3x)÷2^y=2^6 ⇒2^(3x-y)=2^6 =3x-y=6-(1) 3^(4x)*(1/9)^(Y-1)=8^1 3 3^(...
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结果1 题目1. (i) Without using a calculator, solve, for x and y, the simultaneous equations64^x*4^y=1 3^y*81^(1/3)=81[5](ii) Sket h+heparabolay^2=5x .[2] 相关知识点: 试题来源: 解析 (i)∴y=60ry=-2(ii) 反馈 收藏 ...
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The Egyptian Berlin Papyrus, dating back to the Middle Kingdom, contains the solution to a two-term quadratic equation. The Greek mathematician Euclid used geometric methods to solve quadratic equations in Book 2 of his Elements, an influential mathematical treatise Rules for quadratic equations ...