hi, my question is to find the area of this rectangle, im not sure how to work it out so could anyone help? i think the answer would be 2?
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Originally Posted by andyboy179 hi, my question is to find the area of this rectangle, im not sure how to work it out so could anyone help? i think the answer would be 2? $\displaystyle (a+b)(c-d) = ac - ad + bc - bd$ $\displaystyle (1+\sqrt{3})(2-\sqrt{3}) = 2 - \sqrt{3} + 2\sqrt{3} - 3 = \sqrt{3} - 1$
could you explain how you got that please?
Originally Posted by andyboy179 could you explain how you got that please? I thought I did ...
well i don't understand how you got that, how did (1+root3)(-2root3) end up as 2- root3 + 2 root3-3
Originally Posted by andyboy179 well i don't understand how you got that, how did (1+root3)(-2root3) end up as 2- root3 + 2 root3-3 read a lesson and find out how ... Adding (and Subtracting) Square Roots
don't worry i will try and find out at school
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