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RUDIKE [14]
3 years ago
5

Đạo hàm hàm số: 2x² + arctanx

Mathematics
1 answer:
oee [108]3 years ago
7 0

Answer:

4x + \frac{1}{x^{2} +1}

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The appropriate test for thus is the two sample t test which is also known as the independent t test. This tests aims at determined whether there is a statistically significant difference between the means in two unrelated groups which in this context are a random sample with one type of preservative and another sample with another type of preservatives.

With this test, the researcher is able to compare the mean shelf lives of the bananas treated with the two different preservatives... The null hypothesis equalises the two means of the sample while the alternative does otherwise.

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1 year ago
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