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junior college 2 | H2 Maths
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Sonia
Sonia

junior college 2 chevron_right H2 Maths chevron_right Singapore

Hi! Can someone please help me out here? I m struggling with part (ii) of this question. Thanks so much:)

Date Posted: 4 years ago
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Boy Mow Chau
Boy Mow Chau's answer
316 answers (Tutor Details)
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answer for part(ii) …

since the question does not specify in what form the answer should be, then can just do as method 1 and give answer in vector equation form.

if you encounter another question that requires answer in scalar product form, then do as in method 2. 
Sonia
Sonia
4 years ago
Hi, thank you for this solution:) May i ask for method 1, do you assume that t=0 or did u sub t=0 because its the origin?
Boy Mow Chau
Boy Mow Chau
4 years ago
for method 1, you can substitute any value for t because you are just aiming to get a 2nd vector to form the plane. the position vector of any point on line l, will definitely be in the same plane as line l and the origin.

I chose t=0 because it just makes the calculation easier.

note that there are many possible answers for the vector equation of the plane because there are many different vectors and different start point that you can use.