Limits of expressions involving the trigonometric functions can be evaluated by direct substitution --- unless division by zero is encountered. When division by zero is encountered, simplifications such as the ones presented in the Conceptual Understanding of Limits lesson can be attempted.
A short circuit is an abnormal connection between two nodes of an electric circuit intended to be at different voltages. This results in an excessive electric current limited only by the Thevenin thÃ©venin equivalent resistance of the rest of the network and potentially causes circuit, damage, overheating fire or. explosion
What is 'Buying Power' Buying power, also referred to as excess equity, is the money an investor has available to buy securities. In a margin account, the buying power is the total cash held in the brokerage account plus maximum margin available. Also referred to as excess equity. The money an investor has available to buy securities.