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- Sep 30th 2008, 06:24 AM #1

- Joined
- Sep 2008
- Posts
- 7

## Question

Determine the number of digits in the expansion of (2^120)(5^125) without using a calculator or computer.

and

a) Given the function f(x) = x^3 = 2x , sketch y=f(|x|).

b) Sketch g(x) = |x^2 - 1| - |x^2 - 4|

c) Sketch the region in the plane to show all points (x,y) such that |x| + |y| < or equal to 2.

Thanx guys

- Sep 30th 2008, 06:46 AM #2