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समान्तर चतुर्भुज का क्षेत्रफल ज्ञात करें...

समान्तर चतुर्भुज का क्षेत्रफल ज्ञात करें जिसके विकर्ण निम्नलिखित हैं |
`2hati-hatj+hatk` तथा `3hati+4hatj-hatk`

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Find the angle between the vectors 2hati-hatj+hatk and 3hati+4hatj-hatk .

Unit vector perpnicular to vector A=-3hati-2hatj -3hatk and 2hati + 4hatj +6hatk is

A unit vector perpendicular to both the vectors 2hati-2hatj+hatk and 3hati+4hatj-5hatk , is

Find a unit vector which is perpendicular to both the vectors 2hati + hatj - hatk and 3hati + 4hatj - hatk .

If veca=3hati-2hatj+hatk and vecb=2hati-4hatj+hatk then find |veca-2vecb|.

Show that the following vectors are coplanar : 2hati-hatj+hatk,hati-3hatj-5hatk,3hati-4hatj-4hatk .