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secondary 3 | A Maths
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secondary 3 chevron_right A Maths chevron_right Singapore

why must i reject 1 and which 1 should i reject im so confused ahhhh

Date Posted: 1 week ago
Views: 22
Lee SL
Lee SL
1 week ago
Should be reject 7. Bec of ur first line.
Log(3-x)/log2

Log(3-7) = log (-4) is undefined
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Hehe
1 week ago
SORRY I MEANT THANK YOU I WAS SO CONFUSED JN**
Lee SL
Lee SL
1 week ago
I didn’t read ur first post. Hope u understand now
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Hehe
1 week ago
YES THANK YOU
NotATutor
NotATutor
1 week ago
if you had simplified 2 log9(3) = log9(9) = 1
and left it at the rhs, the steps are shorter

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The is because if u sub back 7 into the log function above, the no. inside is a -ve. Log with a negative is an error. Try it on your calculator:)
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Ismail Putra
Ismail Putra's answer
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