Mathematics knowledge of senior one-molecular physics and chemistry

Molecules can of course be physical and chemical. According to the specific research purpose, it is sometimes necessary to make molecules physical and chemical. If a molecule is an irrational number (if the number is not a fraction, it should be regarded as a fraction with a denominator of "1"), you should know how to turn it into a rational number.

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Huaian 2023 senior high school entrance examination scores announced

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The teaching plan of five-step teaching method of mathematics in the first grade of primary school is urgently needed! ! ! ! !

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Mathematical simplification evaluation problem

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Senior one math? Drawing method of function image. Urgent ~! ! !