Mathematics

Evaluate the following definite integral:

$$\displaystyle\int_{4}^{12}x\ dx$$


SOLUTION
$$\displaystyle\int_{4}^{12}x\ dx$$

$$\implies\left.\dfrac {x^2}2\right|_4^{12} $$

$$\implies\dfrac {12^2}2 -\dfrac {4^2}2$$

$$\implies\dfrac {144}2-\dfrac {16}2$$

$$\implies72-8=64$$ 

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Subjective Medium Published on 17th 09, 2020
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