Q 1935591462.     Establish the following vector inequalities
geometrically or otherwise

(a) `|vecA+vecB| le |vecA|+|vecB|`

(b) `|vecA+vecB| ge |vecA|-|vecB|`

(c) `|vecA -vecB| le |vecA|+|vecB|`

(d) `|vecA-vecB| ge|vecA|-|vecB|`


When does the equality sign above apply ?


NCERT Chapter Solution 4/4.6
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