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Rus_ich [418]
3 years ago
6

A formula to find the frequency, f, of a cyclic phenomena based on the period, T, is

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0

Step-by-step explanation:

The frequency and the time period is related by the formula as follows :

f=\dfrac{1}{T}

Here, f is frequency and T is time period

Now, we need to solve T in terms of f.

Firstly, cross multiplying the above equation,

f\times T=1

Now dividing both sides by T.

\dfrac{f\times T}{T}=\dfrac{1}{T}\\\\f=\dfrac{1}{T}

Hence, this is the required solution.

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Ksju [112]

Answer:converge at I=\frac{1}{3}

Step-by-step explanation:

Given

Improper Integral I is given as

I=\int^{\infty}_{3}\frac{1}{x^2}dx

integration of \frac{1}{x^2}  is  -\frac{1}{x}

I=\left [ -\frac{1}{x}\right ]^{\infty}_3

substituting value

I=-\left [ \frac{1}{\infty }-\frac{1}{3}\right ]

I=-\left [ 0-\frac{1}{3}\right ]

I=\frac{1}{3}

so the value of integral converges at \frac{1}{3}

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4 years ago
If f(x)=2+abs(x-3) for all x, what's the value of the derivative f'(x) at x=3?
ruslelena [56]
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8 0
3 years ago
What should be done to x^2 + 15x in order to create a perfect square?
lana [24]

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\bf x^2+15x+\boxed{?}^2\implies \stackrel{\textit{we know the middle term is}}{2\sqrt{x^2}\cdot \sqrt{\boxed{?}^2}\implies 2x\boxed{?}}\qquad then\qquad 2x\boxed{?}=15x \\\\\\ \boxed{?}=\cfrac{15x}{2x}\implies \boxed{?}=\cfrac{15}{2}\qquad \impliedby \textit{we should add that much \underline{squared}} \\\\[-0.35em] ~\dotfill\\\\ x^2+15x+\left( \cfrac{15}{2} \right)^2\implies \left(x+ \cfrac{15}{2} \right)^2

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3 years ago
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The sun of 3 less than 5 times a number and the number increased by 9 is 24. What is the number.?​
puteri [66]

Answer:

let the number be x

(5x-3) + (x+9)=24

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x=3

The number is 3

Step-by-step explanation:

8 0
3 years ago
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