Question

Can anyone help check my steps to see if i've made any mistakes for this vector question?

Answer 1

the answer is right ... i guess so

Answer 2

Your answer is correct

Answer 3

the answer is correct

Answer 4

Thanks, but are the steps correct?

Answer 5

dot and cross product are interchangeable ... but not sure of this step

(i guess the correct way should be this)

c*(axc) = -c*(cxa) = - (cxc)*a = 0
nevertheless it's same, better anyway that's right than above step

Answer 6

Thanks, so it'd be better to write the above steps?

Answer 7

yeah .. whenever you change the multiplicants in cross product, you interchange signs

Answer 8

Thank you very much :)