Application of cross product
Well if we take out area of parlellogram and equate it with 1/2(d1xd2) which we can write as 1/2|d1||d2|sintheta|, i get theta as root(7/9) while the actual answer is cos theta= root (3/10)
4 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.You might have done. Some calc mistake or taken wrong angle answer giver is indeed correct that is costheta = root 3/10
@Lindane
Oh