Qualification > Math
[CIE] All Pure Mathematics (P1, P2 and P3) doubts here !
ShiningStar:
--- Quote from: leebux101 on May 17, 2011, 07:32:31 pm ---also for same questio part iii
how do u get the angle at the vertices! please. =)
--- End quote ---
You don't have to find the angle at the vertices, you can find the lengths of UB, UA and AB and see if they are equal then it is an equaliteral triangle..!
leebux101:
in the marking scheme it says that u have to get the angle at atleast two vertices as 60
secondly, can u do q10 part iii from the same paper! please!! :'(
leebux101:
please! anyone! i need this reallyyy quickly! :'(
ShiningStar:
--- Quote from: leebux101 on May 17, 2011, 08:04:42 pm ---in the marking scheme it says that u have to get the angle at atleast two vertices as 60
secondly, can u do q10 part iii from the same paper! please!! :'(
--- End quote ---
Use the Identity in the 10.i) to replace cosec2x, so it will become:
Integration cotx - cot2x dx (with the same limits)
=(ln(sinx) - 1/2 ln(sin2x)) then substitute with the limits
leebux101:
thakyouuuuuuuuu sooooooo much!
+repp!! =D =D
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