algebra problem collection

Algebra problem collection (1..10)

problems 11..20

1.

2.
Simplify:

3.
Calculate the radius of this circle:

4.

Calculate angle x if c² = a² + 2 b²

5.

6.
Prove:

prove that

1.

7.

given

calculate

8.
If x³ + 4x - 8 = 0 then calculate x⁷ + 64x²

9.

if

then calculate

10.
Prove the next formula for area A: