- #1
tghg
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If α,β,γ are vectors in the Euclid space V, please show that
|α-β||γ|≤|α-γ||β|+|β-γ||α|,where |α|=√(α,α)
and point out when the equal mark holds.
Can someone help me out?
|α-β||γ|≤|α-γ||β|+|β-γ||α|,where |α|=√(α,α)
and point out when the equal mark holds.
Can someone help me out?