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التكامل بالكسور الجزئية: Mathematics Tawjihi question with answer

A Tawjihi Mathematics question (التكامل) with the answer and worked steps.

From the Tawjihi question bank: Mathematics · التكامل

أجد التكامل: 4x+104x24x3dx\int \frac{4x + 10}{4x^2 - 4x - 3} dx.

التكامل بالكسور الجزئية

The answer

نحلل 4x24x3=(2x+1)(2x3)4x^2-4x-3=(2x+1)(2x-3). نكتب 4x+10(2x+1)(2x3)=22x+1+42x3\frac{4x+10}{(2x+1)(2x-3)}=-\frac{2}{2x+1}+\frac{4}{2x-3}. إذن التكامل ln2x+1+2ln2x3+C-\ln|2x+1|+2\ln|2x-3|+C.

Explanation

يتطلب الانتباه لمعامل xx داخل العامل الخطي عند التكامل.

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