Vectors a and c are represented by two sides of an equilateral triangle with sides length 3units.

Vector b is 2units long and b is perpendicular to both a and c.

Evaluate the scalar product a.(a+b+c).

Any help would be muchly appreciated =)

Posted 20 May 2009 - 03:51 PM

Vectors a and c are represented by two sides of an equilateral triangle with sides length 3units.

Vector b is 2units long and b is perpendicular to both a and c.

Evaluate the scalar product a.(a+b+c).

Any help would be muchly appreciated =)

Vector b is 2units long and b is perpendicular to both a and c.

Evaluate the scalar product a.(a+b+c).

Any help would be muchly appreciated =)