Originally Posted by the_anomaly
Can someone please show me how to do question 27 of the Review Exercise in the Heinemann P6 Book. Thanks in advance.
I'll assume you mean Q27(b) as part (a) is simply following the procedure to find [Mimetex cannot convert this formula]
Take [Mimetex cannot convert this formula]
Let the line be represented by the variable point with position vector
[Mimetex cannot convert this formula]
Let P(x,y,z) represent the variable point (and hence the line) which is mapped onto [Mimetex cannot convert this formula]
[Mimetex cannot convert this formula]
[Mimetex cannot convert this formula]
[Mimetex cannot convert this formula]
[Mimetex cannot convert this formula]
That is, [Mimetex cannot convert this formula]
Phew, finally got that out. Sorry about the mess in between.