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If 2/(1!9!)+2/(3!7!)+2/(5!5!)=2^m/(n!), ...

If `2/(1!9!)+2/(3!7!)+2/(5!5!)=2^m/(n!)`, then orthocentre of the triangle have having sides `x-y+=0,x+y+3 and 2x+5y-2=0` is

A

(2m-2n,m-n)

B

(2m-2n,m-n)

C

(2m-n,m+n)

D

(2m-n,m-n)

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A
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