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Mathematics: Post your doubts here!

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hhelp! does anyone know how to do q7 paper 2 june 08? i cant seem to understand the working shown in the marking sheet :(
 
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Guys anyone can help me with the part 2 of this question
why in the answer is stated that 0.02t-ln95.Dont get this part.Thank u.
 

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Hey guys a quick question eq. Of a line is y=kx+1, it is tangent to curve y=x2+3x+5 find values of k,
Thanks
 
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i got help in first part only on integration ,
can someone help with the rest ?
 

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Hi, i'm stuck at figuring whats the values of the angles are as i haven't studied trigonometry yet, so if anyone can help me that'd be great :)
 

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8 Friends are to make a journey in 2 taxis,with four people in each taxi. In how many ways can this be done ?

Please help me solve this problem :)
 
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