Let are unit vectors such that . If the area of triangle formed by vectors is , then what is the value of ? |

Let are unit vectors such that . If the area of triangle formed by vectors is , then what is the value of ? |

1 Answer

127 votes

**(3)**

Given,

Now vector is along the diagonal of the parallelogram which has adjacent side vector . Since is also a unit vector, triangle formed by vectors is an equilateral triangle

Then, area of triangle is

127 votes

127