Question

find vector c which is perpendicular to the vector a=2i+3j-k,b=i-2j+3k ​

Answer 1

Answer:

7i-7j-7k

Step-by-step explanation:

c || (a x b) . (c perpendicular to a and b)

c = p(a x b)

c=| i j k |

   | 2 3 -1 |

   |1 -2 3 |

 = i(9-2)-j(6+1)+k(-4-3)

 = 7i-7j-7k