8 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.(I'm so very sorry for the multiple posts btw.)
iteachchem
Transcription requested by SirLancelotDuLac
مجھے اپنے دوستوں کے لئے کیوں آپ ملٹی پر پوچھتے ہیں؟ بھیجو جتنے دوستیں پوچھو یہ ہی تو ہے فری جگہ ہے جتنا پوچھنا ہے پوچھو۔
I think it should be 1] orthocentre
coz if u take any pt. inside the triangle, so it should satisfy AD vector is perpendicular to BC vector , also BD and CA vectors are perpendicular , so intersection of altitudes is orthocentre
As finally u get AD vector.BC vector=0 when angle b/w them is pie/2 i.e. cos theta is zero
@SirLancelotDuLac
Yes I see. Thanks a lot!
+solved @Say_miracle_shadow
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