What's wrong? Correct answer is a=6/5

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secondary 4 A Maths Singapore

What's wrong? Correct answer is a=6/5

Date Posted: 4 years ago

Snell

4 years ago

error:
normal gradient shld be -1/(3a) ,
not (-1/3)a or -a/3

I’m getting a=5/6. Not sure if the answer given is right.

done {{ upvoteCount }} Upvotes

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Date Posted: 4 years ago