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Mathematics 19 Online
OpenStudy (crashonce):

The figure shows a cuboid. If PA=1, PB=root2 then what is cos angle CAB?

OpenStudy (crashonce):

|dw:1419847848831:dw|

OpenStudy (michele_laino):

I try!

OpenStudy (anonymous):

|dw:1419848428137:dw|

OpenStudy (crashonce):

oh wait PC=2 sorry

OpenStudy (anonymous):

>.<

OpenStudy (crashonce):

ssorry

OpenStudy (anonymous):

|dw:1419848638965:dw|

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