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Mathematics: Post your doubts here!

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replace f(x) in g(x)
complete the square
equate the bracket u get from completing square to zero. ull get value of x
the value after the braket will be the value of y
(x,y) will be turning poitn so maximum point

like a(x-b)+c
x=b
y=c
max point (x,c)
Thanks. :)
 
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Did anyone give Mechanics 2 exam? how was it? I had trouble solving the last two questions, is there anyone to talk about it?
 
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Guys this a question in the psifi evaluation form.i need the answer today.any maths masters understand what this is?please help out asap
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guys can you help me solve this question .. it is Mechanics 1 .. the answer is -1/30 m/s^2
 
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Guys I'm completely scared from this .. I'm A2 student .. I got in maths in AS p1 - 68/75 and in S1 got 44/50 ... no for A2 should I continue with S2 or take M1 ?? as I'm going for engineering they said I'll need M1 ... BUT it seems to be difficult for me as we started kinamatics .. I got in physics AS a (C) grade sadly :( ... so does it have to do anything with physics AS ?? ... or it will be easy ? because kinamatics questions I'm stuck in them from now !. ... so S2 OR M1 ? ... and If M1 ! can someone send me notes and videos for M1 Please .. because our maths teacher doesn't teach anything in the class and he depends totally on our physics AS experience .. he is very cruel in teaching ... so I need help .. :) thanks all !!
 
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Guys I'm completely scared from this .. I'm A2 student .. I got in maths in AS p1 - 68/75 and in S1 got 44/50 ... no for A2 should I continue with S2 or take M1 ?? as I'm going for engineering they said I'll need M1 ... BUT it seems to be difficult for me as we started kinamatics .. I got in physics AS a (C) grade sadly :( ... so does it have to do anything with physics AS ?? ... or it will be easy ? because kinamatics questions I'm stuck in them from now !. ... so S2 OR M1 ? ... and If M1 ! can someone send me notes and videos for M1 Please .. because our maths teacher doesn't teach anything in the class and he depends totally on our physics AS experience .. he is very cruel in teaching ... so I need help .. :) thanks all !!
for engineering, you definitely need M1. tutorials can be found on https://www.khanacademy.org . if u have any confusion in any question, people here are available throughout the year, you can ask the questions :) S2 is not of much use, and M1 is very simple even if you have the basic concepts of physics :)
 
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Help:
If the letters of the word 'MINIMUM' are arranged in a line at random. What is the probability that the arrangement begins with MMM?
 
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Again:
In how many ways can 10 students be arranged in a way that 2 youngest are separated?
 
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I. How many 4 digit numbers can be formed from the digits 1,2,3 and 5 If repetitions are not allowed?

II. How many 4 digit numbers divisible by 5 can be formed from the digits above?
 
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