Question

a=2i+j+4k b=3j-j+2k c=3i+j+4k find a•(b×c)​

Answer 1

Answer:

Step-by-step explanation:

A=2i+j+4k b=3i-j+2k c=3i+j+4k find a•(b×c)

So, b*c=(3+3)i+(-1+1)j+(2+4)k

=6i+6k

Then, a*(6i+6k)

=(6+2)i+(1+0)j+(6+4)k

=8i+j+10k .Ans