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secondary 3 | A Maths
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20 (iii) please thank you so much !
Date Posted: 6 years ago
Views: 375
Make a perfect square from the expression
You can do this by putting it in the form:
a^2 + 2b^2 - 2ab*sqrt2
You get ab = 12
a^2+2b^2 = 34
You can use simultaneous equations to solve for a and b. You should get
(4-3*sqrt2)^2
Go try it! Hope it helps
You can do this by putting it in the form:
a^2 + 2b^2 - 2ab*sqrt2
You get ab = 12
a^2+2b^2 = 34
You can use simultaneous equations to solve for a and b. You should get
(4-3*sqrt2)^2
Go try it! Hope it helps
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