sunlight's answer to sunlight's Secondary 3 A Maths Singapore question.

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sunlight
Sunlight's answer
7 answers (A Helpful Person)
1st
I did this but I can't continue further on
J
J
3 years ago
Correct. Just need to continue.

(32√3 + 8(3) + 196 + 49√3) / (16 - 3)

= (81√3 + 220) / 13

= 81/13 √3 + 220/13

b = 81/13 (or 6 3/13)

a = 220/13 (or 16 12/13)
J
J
3 years ago
If you use calculator to check the answer you'll realise both give you the same result

i.e key in (8√3 + 49) ÷ (4 - √3) and compare this with 81/13 √3 + 220/13.

It will be the same.


OR

in one step, key in (8√3 + 49) / (4 - √3) - (81/13 √3 + 220/13)


Since both are supposed to be the same, the result should be 0.