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
Soft power is the ability to influence and shape others' choices and preferences without the use of traditional hard power tools (i.e. coercion and bribery). Nebulous and somewhat ambiguous, think of soft power as a country's brand, made up as a collection of the country's overall ideology, culture, and policy.