3 years ago

PLEASE HELP 10 MIN LEFT HELP ASAP 20 POINTS

Mathematics

2 answers:

Jobisdone [24]3 years ago

6 0

Answer:

thats the answer D

Step-by-step explanation:

hope that helped

alexdok [17]3 years ago

6 0

Answer:

the answer is b

Step-by-step explanation:

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blagie [28]

Divide multiple 478 by c to max

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2 years ago

Which valve is closest to 85% of 25

Papessa [141]

Answer:

Step-by-step explanation:

The value that is closest

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<em>Hope this helps! <3</em>

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2 years ago

Please show me how to solve the initial value problem <br> y'=tanx y(pi/4)=3

AlexFokin [52]

The ODE is separable, i.e. you can write

$\dfrac{\mathrm dy}{\mathrm dx}=\tan x\iff\mathrm dy=\tan x\,\mathrm dx$

Integrating both sides gives the general solution.

$\displaystyle\int\mathrm dy=\int\tan x\,\mathrm dx$
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Given that $y\left(\dfrac\pi4\right)=3$ , we have

$3=-\ln\left|\cos\dfrac\pi4\right|+C$
$3=-\ln\dfrac1{\sqrt2}+C$
$3-\ln\sqrt2=C$

and so the particular solution to the IVP is

$y=-\ln|\cos x|+3-\ln\sqrt2$
$y=3-\ln|\sqrt2\cos x|$