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-2 + V2 2V2 + 3 -4V2 + 4 - 6 + 3V2 -2 -V2
---------- x ------------ = ------------------------- = ---------- = 2+V2
2V2 - 3 2V2 + 3 8 - 9 -1
2)
2V3 V11 - V5 2V33 - 2V15 2V33 - 2V15
----------- x --------------- = ------------------ = -------------------
V11 + V5 V11 - V5 11 - 5 6
V33 + V5
= ------------
3