5m Zen
Z px qy pq
Z px qy pq pictures 5
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Z px qy
Z px qy pq
z u003d px + qy - 2 sqrt(pq)
zu003dpx+qy-sin pq
px qy z 1 pq 1 2
z px qy p 2 pq q 2
z px qy log pq
z px qy 2 u221A pq
solve z px qy pq
zu003dpx+qy(pq)^3/2
z px qy pq by charpit method
z px qy pq
