For any two vectors ` vec a\ a n d\ vec b ,` fin d\ `( vec axx vec b). vecbdot`

For any two vectors vec a\ a n d\ vec b , find veca.( vecbxx veca)dot

For any two vectors vec a\ a n d\ vec b prove that | vec axx vec b|^2=| (veca. veca , veca. vecb),(vecb.veca ,vecb.vecb)|

For any two vectors vec aa n d vec b , prove that | vec a+ vec b|lt=| vec a|+| vec b| (ii) | vec a- vec b|lt=| vec a|+| vec b| (iii) | vec a- vec b|geq| vec a|-| vec b|

for any two vectors vec a and vec b, show that |vec a*vec b|<=|vec a||vec b|

For any two vectors vec a and vec b ,prove that (vec a xxvec b)^(2)=|vec a|^(2)|vec b|^(2)-(vec a*vec b)^(2)

For any two vectors vec a and vec b write then |vec a+vec b|=|vec a|+|vec b| holds.

For any two vectors vec a and vec b, we always have |vec a+ vec b|<=|vec a|+|vec b|

For any two vectors vec a and vec b write when |vec a+vec b|=|vec a-vec b| holds.

For any two vectors vec a, vec b | vec a * vec b | <= | vec a || vec b |

For any two vectors vec a and vec b prove that | vec a + vec b | <= | vec a | + | vec b |