1.

A = (2, 4, 5) and B=(3, 5, -4) are two points. If the xy-plane, yz-plane divide AB in the ratios a:b, p:q respectively then (a)/(b)+(p)/(q)=

Answer»

`(23)/(12)`
`(-7)/(12)`
`(7)/(12)`
`(-22)/(15)`

ANSWER :c


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