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Question Number 213330 by MrGaster last updated on 02/Nov/24

Commented by MathematicalUser2357 last updated on 06/Nov/24

I need to send the equation to my chinese lover

Ineedtosendtheequationtomychineselover

Answered by MrGaster last updated on 03/Nov/24

My answer to the first question:  (1)PA⊥ABCD→PA⊥AD+PB⊥AD→AD⊥PAB→AD⊥AB+AB⊥BC+ABCD→AD//BC→AD//PBC  [Q.E.D]  (2)……

Myanswertothefirstquestion:(1)PAABCDPAAD+PBADADPABADAB+ABBC+ABCDAD//BCAD//PBC[Q.E.D](2)

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