Why Does i^2 Equal -1? Explained - Physics Forums
Oct 20, 2014 · A common misconception arises when applying the property of square roots, specifically sqrt (a) * sqrt (b) = sqrt (a*b), which only holds true for positive real numbers. The conversation …
Is the Square Root of 0 Undefined? - Physics Forums
Oct 24, 2004 · Is the square root of 0 undefined? I was recently told that the square root of 0 is undefined because the limit of a square root didn't exist at 0. The reason is that from the negative …
How Does Omega Squared Equal k/m in Simple Harmonic Motion?
Aug 6, 2015 · The derivation confirms that the square root of the ratio k/m represents angular frequency, a concept commonly anticipated in physics textbooks. Familiarity with the concepts of force and …
When should the plus/minus sign be used when dealing with square …
Jul 13, 2009 · When should the plus/minus sign be used when dealing with square roots? Dr. Mirrage Jul 13, 2009 Root Sign Square Square root Click For Summary
What is the Square Root of 4761? | Free Expert Q&A | bartleby
Popular Questions I really need help figuring out how to find the square root of an imperfect square. For example, I know the square root of 640 is 8 x (square root of 6) but how do I get to the square root of …
Absolute value and square root - Physics Forums
Feb 3, 2007 · The square root is still there, since that is the operation being applied to (4x+1). When we take the square root of a number, we get a positive number, and a negative number (consider the …
Derivative of Square Root of x at 0 - Physics Forums
Feb 23, 2022 · When you use the power rule to differentiate the square root, the result is 1/2(sqrt. x) which is undefined at 0. But, when you use the definition of the definition of the derivative to calculate …
Equation Confusion: T Explained | 2π√l/g • Physics Forums
May 10, 2008 · I've come across a equation and I don't understand whether T is Time/s or Tension/N. Can someone explain this equation: T = 2 \pi \sqrt {\frac {l} {g}}...
Why can sqrt (1+x) be approximated by 1+x/2 for small x?
Jul 18, 2007 · For small x, it seems sqrt(1+x) can be approximated by 1+x/2. Why exactly is this? Is there a theorem that I can refer to? Some kind of infinite series where the x^4 power term dies out? …
Square Root of 4: Can it be +2 or -2? - Physics Forums
Mar 6, 2010 · Consider square root of 4. Can square root of 4 be +2 or -2? I asked that to my math teacher so he said: NO, square root of 4 is +2! But I can't really understand why it cannot be -2 since …