3 years ago

Find the sum of the first 39 terms of the following series, to the nearest integer. 2 , 7 , 12 , . . .

Mathematics

2 answers:

hammer [34]3 years ago

7 0

Answer:

3783

Step-by-step explanation:

kodGreya [7K]3 years ago

3 0

Answer:

let'ssssssssss gooooooooooooooooooooooooooooooooooooooooooooooooo

Step-by-step explanation:

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Estimate the limit A B C D

Lera25 [3.4K]

Answer:

C. $\lim_{x\rightarrow f(x)=2$

Step-by-step explanation:

Given problem is $\lim_{x\rightarrow \frac{\pi}{4}}\frac{tan(x)-1}{x-\frac{\pi}{4}}$ .

Now we need to evaluate the given limit.

If we plug $\x=\frac{\pi}{4}$ , into given problem then we will get 0/0 form which is an indeterminate form so we can apply L Hospitals rule

take derivative of numerator and denominator

$\lim_{x\rightarrow \frac{\pi}{4}}\frac{tan(x)-1}{x-\frac{\pi}{4}}$

$=\lim_{x\rightarrow \frac{\pi}{4}}\frac{sec^2(x)-0}{1-0}$

$=\frac{sec^2(\frac{\pi}{4})-0}{1-0}$

$=\frac{(\sqrt{2})^2}{1}$

$=\frac{2}{1}$

Hence choice C is correct.

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