Solve the inequality 2 X−1 > 5 and graph its solution.

Find the scalar component of projection of the vector a = 2

If 

Show that Also, find 

If y =

Using integration, find length of the curve y = 3 – x from (-1, 4) to (3, 0)

Find the sum of first all integers between 100 and 1000 which are divisible by 7.

If , are cube roots of unity, show that