Vectors

1.What does book mean by:

(axb)2

2. What is (axb).(cxd) equal to?

I'm Having problems with properties of x and . products....(above problem q.2)

4 Answers

62
Lokesh Verma ·

(axb)2 makes no sense...

if only it should be the dot product of the two!

33
Abhishek Priyam ·

What is given in TMH:

(axb)2=a2b2-(a.b)2 .... this aslo doesnot make sense to me a2b2

62
Lokesh Verma ·

a2 only refers to |a|2

but i will check the formula.. i dont remember any vector formulas .. so hard luck on me..

·

(axb).(cxd)
can be evaluated using vector triple product formula
consider (axb) as a vector

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