Eric Nicholas K's answer to Kathy's Secondary 4 A Maths Singapore question.
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Q1, same idea as the previous question
Date Posted:
4 years ago
Can you check for me why the normal part my book answer is different from you
Kathy, I made a mistake in the copying, carrying forward the error. I miswrote the x = 1, y = -3 as (1, 3). I will redo this one later. Just finished teaching my student techniques on trigo identity solving.
Ok. Thanks
That means for the tangent and normal, 1, -3 should be used instead of 1, 3.
Are u around?
I will help you once ready
Kathy, my phone ran into the same trouble again. I will upload my answers by scanning shortly and then answer questions from online.
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