thankx dearwell if u have time it can help everyone!!! btw my teacher has really taught this chapter well
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thankx dearwell if u have time it can help everyone!!! btw my teacher has really taught this chapter well
nobody is interested in it. nobody gave me asnwer that they want to see them. so i guess i should not waste my time. but if anyone would say me to make notes on any topic, i will inshallah make them.well if u have time it can help everyone!!! btw my teacher has really taught this chapter well
sir hameed is the best teacher better consult to himhey... i have problems in Mensuration, Trignometry and Transformation chapters. Some guidelines for me.
Forget the book, jump on past papers.plz hlp me...................
i am lft wit only 3 months n i hav to do D1,D2,D3,D4 nd addendum
tel me hw to secure A* in maths
plz repli soon as m out ov tym......................
do past papers. if you feel some problem, then read the explanation of that topic and then move directly to past papers. If you have a teacher to explain you the topic then you don't need book at all. if u have problem in graphs my graphs notes might be helpful. see the link in my signature.plz hlp me...................
i am lft wit only 3 months n i hav to do D1,D2,D3,D4 nd addendum
tel me hw to secure A* in maths
plz repli soon as m out ov tym......................
by doing classified past papers. all of them with full concentration.hw can i score straight A* in maths???////
(a)(i): volume of cuboid is length*breadth*hight. so simply write: (2x)(x+4)(x+1) cm³MATHS HELP NEEDED
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s03_qp_4.pdf
q- 6 how to do that simplification like m gettin sum other answer! pls show in a detailed way how to simplify! i want to know how to do the whole question 6!!!!
please help its urgentttt!!!!!
turns out to be simple sign silly mistake - thx anyway
no problemturns out to be simple sign silly mistake - thx anyway
thnxxxx a lot(a)(i): volume of cuboid is length*breadth*hight. so simply write: (2x)(x+4)(x+1) cm³
(a)(ii): expand it and then simplify. see attachment for detailed processs.
(b)(i): it says that the width is 1cm so inner area will be reduced from each side by 1cm, so 2cm for each dimension.
(b)(ii): to fing volume of wood subtract volume of all of the box by volume of inside of the box. volume of inside is found by multiplying the internal dimesions.
1-it is 2x³+2x²-4x. when we substract total volume from it we get volume of wood.
2-(2x³+10x²+8x)-(2x³+2x²-4x)=8x²+12x
(c)(i)
as the area of wood we found in previous question is 8x²+12x and the questions tells us that real value is 1980cm³, so 8x²+12x must be equal to 1980cm³.
so put them equal to each other:
1- 8x²+12x=1980
2- 4(2x²+3x)=1980
3- 2x²+3x=1980/4
4- 2x²+3x=495(substract both sides by 495)
5- 2x²+3x-495=0
(c)(i): solve quadrativ by this formula; [-b±√(b²-4(a*c))]÷2(a)(see attachment)
(c)(ii): in each dimension put positive value of x as length can not be negative. the answers are 30 cm *19 cm * 16 cm.
(a)(ii)View attachment 21008(c)(i) View attachment 21009
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