Algebra problem collection (1..10)


problems 11 to 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: