(adsbygoogle = window.adsbygoogle || []).push({}); Zero x infinity = -1 ???!!!

when two lines meet perpendicularly, we hv the formula v

m1 x m2 = -1

if a horinzontal line meet v a vertical line,by using same formula ,we hv

m1 x m2 = -1

zero x infinity = -1

so..does it make sense??!!

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# Zero x infinity = -1 ?

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