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I accidentally dropped it off in water.. its no longer functioning cos d board rust...

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Hi, your best bet would be to take the phone back to the company where it was purchased. depending on your contract you may get a free replacment.
hope this helps

Posted on May 22, 2011


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Water damages the integrated circuit board and certain functions may not work any longer.

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Not likely :( In the future, anything you get that is expensive, buy a warranty from Square Trade and add the optional Accidental Damage warranty that covers damage from breaks, spills, dropping, etc. Anything with a motherboard that gets wet or has parts that can erode once they get wet are pretty much trash. Sorry.

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I dropped iphone down the toilet put it in a bag of rice. My home key wont work and my internet what do i do?

How long has it been since you dropped it in water? Sometimes you can let it dry for a few days and find that it works fine again. Sometimes, the water corrodes the circuit boards and you'll lose some or all functionality. If it continues to not work, take it to an Apple Store if you have one close by. They may or may not choose to replace it under warranty. You can also try calling AppleCare (1-800-275-2273 in the US) FYI, it's better to not lie about accidental damage. They usually have ways of knowing about liquid damage. Good luck!

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Water stinks

If water has odor, then check anode rod or hire plumber to replace anode rod.

Bacteria reacts with metal on anode rod, causing odor.
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My radio got wet it was working for a few days off and on and now it doesn't work at all but the face this come up

Most likely the radio is non functional at this point. Once circuit boards get wet even though they dry out and begin to work the corrosive effect that the chemicals and makeup of water continues a slow deterioration of them until they no longer function. Some components on a circuit board are extremely sensitive and this deterioration is like rust slowly creeping across copper circuit traces until current and signals can no longer move along them. Sorry for the bad news.

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How to solve for the trigonometric functions in the casio scientific calculator?

Press the relevant function key [SIN],[COS],[TAN] followed by the angle value.
For inverse trigonometric functions [SIN^-1], COS^-1], or [TAN^-1], Press [SHIFT][SIN], [SHIFT][COS], or [SHIFT][TAN].
For other functions

When calculating trigonometric functions one must make sure that the angle unit the calculator is using is the correct one.

Aug 26, 2010 | Casio FX-115ES Scientific Calculator

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Why the cos of 90 is -0.44... ?? and the tan sin its'nt correct in the calculator what can i do ?

The trigonometric function evaluations depend on the angle unit you are using: degree, radian, grad
While cos(90 deg)= 0,
cos(90 rad )=cos(90* 180/pi degrees)= -.448073616

ALWAYS CHECK UNITS before using trigonometric functions or their inverse functions.

May 13, 2010 | Casio FX-7400G Plus Calculator

1 Answer

How to use the cosine,tangent etc functions of calculator fx-82ES plus

1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]

2. Press the key for the function COS, SIN, or TAN
[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12
Close the right parenthesis ) Screen shows cos(12)
4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)
arcsin [SHIFT][SIN] (sin^-1)
actan [SHIFT][TAN] (tan^-1)

You have to know the principal domain for the inverse trigonometric functions (see any book on trigonometry) to understand the results.
Hope it helps.

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This is a trigonometry problem not a calculator's.
cos(x) +tan(x).sin(x) = ( cos(x) + (sin(x)/cos(x)).sin(x). After reduction to the same denominator (which is cos(x)) you obtain

{cos(x).cos(x) + sin(x).sin(x)} divided by cos(x).
The content of the bracket above is just 1.
Your fraction will have 1 as numerator and cos(x) as denomitor. That is exactly the definition of the secant function i.e. Function sec is the reciprocal (not the inverse) of the cos function, while the arccos is the inverse of cos.

A mild advice: Avoid writing function without specifying the argument (the variable on which a function acts).


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1 Answer

T5710 die

Check your Qt filter and be certain it is set to zero on both radios. If you are certain each of the setting is the same on both units, your dropped unit may be no longer functioning. Sorry.

Oct 20, 2008 | Motorola Talkabout T5720 (7 Channels)...

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