There are many different contexts in which lambda is used. It is not possible to make sense of the question without knowing the context.
The result of multiplying lambda times nu is the product of the two values.
Yes, it can. This happens when all of the observations are equal. This can also happen when some values are negative and some are positive (assuming that the variable under consideration can assume negative values).
Lambda is used in many different contexts: some of these can be positive, some can be negative and yet others can be either.
The Lambda, I assume, is used as a pride symbol for many things. However, the first thing that comes to mind (and these thoughts are supported by the categories it has been placed into), is the symbol of the GLBTQ community. The Lambda itself stands for Liberation, and more information of it can be found here: http://en.wikipedia.org/wiki/LGBT_symbols#Lambda
The motto of Lambda Lambda Lambda is 'Follow the Twelve'.
Lambda Lambda Lambda was created on 2006-01-15.
What is the significance of negative values of voltage and current?Negative values show direction and that is the significance
I assume the equation you're looking for is E=hv or E=hc/lambda. h is plancks constant and c is speed of light in m/s. lambda is in metres
answer: λ
Lambda Upsilon Lambda was created on 1982-02-19.
They try to join the fraternity Lambda, Lambda, Lambda (the "Tri-Lams").
The motto of Lambda Upsilon Lambda is 'La Unidad Para Siempre'.