For any two vector a and b , correct statement is

Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry

1. \(|\vec{a}-\vec{b}|=|\vec{a}|-|\vec{b}|\)
2. \(|\vec{a}+\vec{b}| \geq|\vec{a}|-|\vec{b}|\)
3. \(|\vec{a}+\vec{b}|=|\vec{a}|+|\vec{b}|\)
4. \(|\vec{a}-\vec{b}| \leq|\vec{a}|-|\vec{b}|\)

Answer

(B) | a + b | | a |-| b |

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