Jiayang's answer to Tianqi's Secondary 4 A Maths question.
? How come
How come
// means OA=nOB where n is a scalar constant. Likewise for OC. All the vectors are scalar multiples of each other
At lower part there 2hk=30....
But after that become=25....
Why?
But after that become=25....
Why?
Cus I change 4h to 5h. Look at the left column
How to change ya? Left column upper part or lower part
-h=5
2k=-10
2k=-10
Did it show anything
Yes it does.
30 = 25+5 = 25-h
Next line
25 = 35-10 =35+2k
30 = 25+5 = 25-h
Next line
25 = 35-10 =35+2k
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