He is known for his unscrupulous ways. He always sheds ____ tears to deceive people.

Define [x] as the greatest integer less than or equal to x, for each x ϵ (-∞, ∞). If y = [x], then area under y for x ϵ [1,4] is

Multiplication of real valued square matrices of same dimension is

The Laplace transform of function f(t) is L(t) $$ = \frac{1}{{\left( {{s^2} + {\omega ^2}} \right)}}$$. Then, f(t) is