Hello, calculus_jy!

This isThe Problem from Hell. . . (coming to a theater near you)

Multiply [1] byIf .

prove that: .

Multiply [2] by

Add: .

. . . .

. . . . . . . . . . . . .

. . . . . . . . . . . . .

In a similar fashion solve for

We have: .

. . . . . . . . . . . .

. . . . . . . . . . . .

We have: .

. . . . . . . . . . . .

. . . . . . . . . . . .

Then: .

Add [3] and [4]:

. .

. . . . . . . . . . . . . .

. . . . . . . . . . . . . .

. . . . . . . . . . . . . .

Therefore: . . . . . ta-DAA!!