/ ______________ \ / ______________ \ / ______________ \ | / ______ / ___\ | | / ______ / ___\ | | / ______ | | / \/ 3945 | 1 I*\/ 3 | 7 | | / \/ 3945 | 1 I*\/ 3 | 7 | | / \/ 3945 7 | x*|x + - 3 / 6 + -------- *|- - - -------| + -------------------------------------|*|x + - 3 / 6 + -------- *|- - + -------| + -------------------------------------|*|x + - 3 / 6 + -------- + ---------------------| | \/ 9 \ 2 2 / ______________ | | \/ 9 \ 2 2 / ______________ | | \/ 9 ______________| | / ______ / ___\| | / ______ / ___\| | / ______ | | / \/ 3945 | 1 I*\/ 3 || | / \/ 3945 | 1 I*\/ 3 || | / \/ 3945 | | 3*3 / 6 + -------- *|- - - -------|| | 3*3 / 6 + -------- *|- - + -------|| | 3*3 / 6 + -------- | \ \/ 9 \ 2 2 // \ \/ 9 \ 2 2 // \ \/ 9 /