HI Can someone tell me how would i complete the following question: If and find the values of p and q such that a+pb+qc is parallel to the x-axis. This is what i just started: P.S
Follow Math Help Forum on Facebook and Google+
Originally Posted by Paymemoney HI Can someone tell me how would i complete the following question: If and find the values of p and q such that a+pb+qc is parallel to the x-axis. This is what i just started: P.S If the resultant vector is parallel to the axis, then its and components are 0.
the answers says and
Do what I said. Collect the and terms. Set the and terms to 0. Solve the resulting equations.
ok i'll tried that
I still cannot get it can someone tell me the working to this.
continuing from where u left off as stated in the question, the vector a+pb+qc is parallel to the x-axis therefore, the and component are null using that result; --> (1) --> (2) (2) multiply by 2 --> (2a) (2a)-(1); substitute into (1)
View Tag Cloud