Differentiation...

A _____ is an arrangement of all or part of set of object in a definite order.

33, 43, 65, 99, 145 ?

958, 833, 733, 658, 608 ?

If $$\left( {n + 1} \right)! = 12 \times (n - 1)!\;then\;n = $$

If D=4 and COVER = 63, then BASIC is equal to

if $$y=5x^2+8x$$ find $$\dfrac {dy}{dx}$$

The mid points of three sides of a triangle are (0, 1) (0, 2) and (0, 3). Area of this triangle. 

How many six letter words be made out of the letters of $$ASSIST$$ ? In how many words the alphabets $$S$$ alternates with other letters ?

If $$y=\log \sin x$$ find $$x$$ if $$y=0$$