# Math Help - help me with integral inequality

1. ## help me with integral inequality

good day
can you help me please I have homework and Icann't solution
the homework is proof that the inequality :

Double integral (from a to b)(from c to d) of ( f(x,y) (∂^2f(x,y)/∂x∂y))dy dx <= ((b-a)(d-c))/8 double integral (from a to b)(from c to d) of (∂^2f(x,y)/∂x∂y))^2 dy dx

and thank you for help me.

2. Originally Posted by someone1
good day
can you help me please I have homework and Icann't solution
the homework is proof that the inequality :

Double integral (from a to b)(from c to d) of ( f(x,y) (∂^2f(x,y)/∂x∂y))dy dx <= ((b-a)(d-c))/8 double integral (from a to b)(from c to d) of (∂^2f(x,y)/∂x∂y))^2 dy dx

and thank you for help me.
This hardly belongs in "Inequalities," or, for that matter, anywhere in "Elementary and Middle School Math Help"

3. thank you Mr. ecMathGeek