For any two vectors ` vec a\ a n d\ vec b` write then `| vec a+ vec b|=| vec a|+| vec b|` holds.

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 write when |vec a+vec b|=|vec a-vec b| holds.

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

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 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\ a n d\ vec b , fin d\ ( vec axx vec b). vecbdot

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

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 xxvec b)^(2)=|vec a|^(2)|vec b|^(2)-(vec a*vec b)^(2)