Question

16) If vector A is (2i+3j+6k) and vector B is (3i+8j+k) then find their Dot
and cross product ?​

Answer 1

Answer:

Dot product - 36 units

Cross product - -45i +16j+7k

Explanation:

A = 2i+3j+6k

B = 3i+8j+k

A.B is the dot product

A.B = 2X3+3X8+6X1 = 36 units

AXB is the cross product

AXB  = (3-48) i - (2-18)j + (16-9) k = -45i +16j+7k

Answer 2

Explanation:

A=2i+3j+6k

B=3i+8k+k

A.B=2*3+3*8+6*1

=6+24+6

=36

a1=2 a2=3 a3=6

b1=3 b2=8 b3=1

A x B=(a2b3-b2a3)i + (a1b3-b1a3)j + (a1b2-b1a2)k

=(3-48)i + (2-18)j + (16-9)k

=-45i + (-16)j + 7k

= -45i - 16j + 7k

Hope you understand

Please make it a brainlist answer