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![[Post New]](/templates/default/images/icon_minipost_new.gif) 12 Mar 2008 20:04:14 IST
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guidelines for mathematics class twelth
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13 Mar 2008 10:11:10 IST
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study the text book really well and sove all the questions
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13 Mar 2008 16:24:28 IST
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hai!!!post your doubts on goiit course material forum.
i will try to clear your doubts.
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16 Mar 2008 19:15:37 IST
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pg 352 q-4 (txt)
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IUSHI |
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16 Mar 2008 19:31:20 IST
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not yet studied integration?wednesday i will surely reply...
anyothers please help guptaayu..........
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16 Mar 2008 20:07:11 IST
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pg 352 q-4 (txt) I =  1/x^2(x^4 + 1)^3/4 = 1/x^2 (x^4)^3/4 (1/x^4 + 1)^3/4 = 1/x^5 (1/x^4 + 1)^3/4 NOW TAKE t =(1/x^4 + 1) AND DEN dt= -4/x^5 dx NOW ITS EASY.................
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thanx...sneha
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17 Mar 2008 22:56:23 IST
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thanks a lot sneha
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IUSHI |
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18 Mar 2008 01:31:39 IST
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dont miss ne step coz they hav mrks 4 steps 222  |
don't walk as if u rule d world
walk as if u dont care who rules d world
-this is knw as attitude
B who u r and say wat u feel ......
coz those who mind don't matter ........
and those who matter dont mind ......... :)
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18 Mar 2008 17:04:33 IST
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pg 353
question no 25,27,30
do help fast....
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hey!!!!!
astala vista people |
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18 Mar 2008 17:09:49 IST
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30.take t=sinx-cosx
dt=(sinx+cosx)dx
sin2x can be written as 1-t2
now u can easily solve it
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dont worry .
be happy and positive
nd nvr stop bcz life cant wait.
nd watever happens keep smiling bcz log haste huye btr lagte hain.try to fight wid d situation
nd tc of urself bcz u r spl to someone out dere |
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18 Mar 2008 17:14:58 IST
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q 25 1+cos x = 2 cos^2 (x/2) and 1+ sin x = 1+ 2 cos (x/2) sin (x/2) = integral of e^x {1/2 sec^2 (x/2) + tan (x/2)} = e^x {tan (x/2)}
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18 Mar 2008 17:20:07 IST
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if it helps then rate me
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18 Mar 2008 17:22:40 IST
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pg 120 q 13 [determinant] its dammn plz help!!!!!!!!!!!!!!11
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18 Mar 2008 19:00:20 IST
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its quite tedius one
first multiply the 3rd row with b keeping one b outside the determinant
then add the 3rd row to the first row..........
then take out the b from 3rd row and cancel it with the b outside the detrminant
now multiply again 3rd row with a and subtract 2 nd row from third....
take the a out and cancel it agin like b.............hope u got it
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