Nicole She's answer to Nicole She's Secondary 3 A Maths Singapore question.
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Jia yang could u look at my answer and help me see what is wrong
Date Posted:
5 years ago
Let me see...wait
The second expansion, be careful of the -ve sign when you expand
Negative (square root x)^1/2
You cannot bring the negative sign to the power
-x^0.5 is NOT the same as x^(-0.5)
So do the following terms.
You cannot bring the negative sign to the power
-x^0.5 is NOT the same as x^(-0.5)
So do the following terms.
Ok thank you Nicholas
So the expansion in the second version should look exactly like the first but instead of + + + + + +, you will get + - + - + - as the coefficients
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