Jiayang's answer to Tianqi's Secondary 4 A Maths question.

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Jiayang
Jiayang's answer
1883 answers (Tutor Details)
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Tianqi
Tianqi
6 years ago
? How come
Tianqi
Tianqi
6 years ago
How come
Jiayang
Jiayang
6 years ago
// means OA=nOB where n is a scalar constant. Likewise for OC. All the vectors are scalar multiples of each other
Tianqi
Tianqi
6 years ago
At lower part there 2hk=30....
But after that become=25....
Why?
Jiayang
Jiayang
6 years ago
Cus I change 4h to 5h. Look at the left column
Tianqi
Tianqi
6 years ago
How to change ya? Left column upper part or lower part
Jiayang
Jiayang
6 years ago
-h=5
2k=-10
Tianqi
Tianqi
6 years ago
Did it show anything
Jiayang
Jiayang
6 years ago
Yes it does.

30 = 25+5 = 25-h
Next line
25 = 35-10 =35+2k