1. Solve the following tasks:
1.5 The perimeter of an isosceles triangle is equal to 2p. What should be its base, the volume of the body formed by the rotation of the triangle around its base, was the greatest?

2. Carry out a full investigation of these functions and build their schedules.
2.5 y = (4x - x2 - 4) / x

3. Carry out a full investigation of these functions and build their schedules.
3.5 y = (4ex2 - 1) / ex2

4. Find the minimum and maximum values of the function y = f (x) on the interval [a; b]
4.5 y = ln (x2 - 2x + 4), [-1; 3/2]

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