Mathematics: What is the value of x

Arc length Arc length Step-by-step explanation:The arc length of the curve is given by Here, interval Now, Now, the arc length is After solving, Arc length...

What is the value of x - id11992257, dasiaflowers85

Ответ:

sara12340

17.04.2021

Mathematics

90-26=64

64 is the value of x

Step-by-step explanation:

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Ответ:

imello51

24.07.2021

Mathematics

Arc length $=\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

Arc length =9.75053

Step-by-step explanation:

The arc length of the curve is given by $\int_a^b \sqrt{1+[f'(x)]^2}\ dx$

Here, $f(x)=\int_0^{4.5x}sin(t) \ dt$ interval $[0, \pi]$

Now, $f'(x)=\frac{\mathrm{d} }{\mathrm{d} x} \int_0^{4.5x}sin(t) \ dt$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( [-cos(t)]_0^{4.5x} \right )$

$f'(x)=\frac{\mathrm{d} }{\mathrm{d} x}\left ( -cos(4.5x)+1 \right )$

f'(x)=4.5sin(4.5x)

Now, the arc length is $\int_0^{\pi} \sqrt{1+[f'(x)]^2}\ dx$

$\int_0^{\pi} \sqrt{1+[(4.5sin(4.5x))]^2}\ dx$

After solving, Arc length =9.75053

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What is the value of x

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