o level add maths november 2012

[ritesh isuri]

u r welcome!!!

 

[shain612]

can u help me in this one:
if we have to arrange 6 numbers find the different number of arrangements that can be done

 

[ritesh isuri]

well its a question on permutations since number of arrangements and the answer is 6! which is equal to 720

 

[shain612]

did anyone did the or question?? if yes could u plz tell me what coordinates you`ve got?

 

[ritesh isuri]

did anyone did the or question?? if yes could u plz tell me what coordinates you`ve got?

yes, i have done that and which coordinates are u talking about the stationary point? is yes i think to have got(0,1/4)

 

[Azhar Shaikh]

yes, i have done that and which coordinates are u talking about the stationary point? is yes i think to have got(0,1/4)

weh isuri saem sa

 

[Azhar Shaikh]

did anyone knw how to do the f'(X)
ritesh isuri

 

[Azhar Shaikh]

and the nature of the stationar point was maximum
?
in OR question

 

[shain612]

did anyone knw how to do the f'(X)
ritesh isuri

not mee in fact i was searching for f(inverse) but we had to differentiate!!

 

[shain612]

and the nature of the stationar point was maximum
?
in OR question

yeah even i got max

 

[shain612]

yes, i have done that and which coordinates are u talking about the stationary point? is yes i think to have got(0,1/4)

i did not get that i have got (0, -0.5)

 

[shain612]

did anybody know the question on surds? i have forgotten my answer but got (something)* root2 - 2 did anyone else got that?

 

[shain612]

and for the question on period for the tan one what did u got?

 

[shain612]

i do not think that we should have taken 360/3 in this case coz its sketch is a bit different

 

[shain612]

and for the function one did anybody got 0.5 and 2 or -2(i have forgotten) as the last answer?

 

[Azhar Shaikh]

yeah
its -2
and tan 3x shud be 180/3
i wrote 60 drgress
but i thnk the nswer shud have been in radians

 

[ritesh isuri]

and for the question on period for the tan one what did u got?

i think to have got pie/3

 

[ritesh isuri]

and for the question on period for the tan one what did u got?

for tan we should either take pie or 180 and divide it by the number found after the tan (4tan3x)

 

[Azhar Shaikh]

i did not get that i have got (0, -0.5)

do u remember the equation of the curve?

 

[Azhar Shaikh]

for tan we should either take pie or 180 and divide it by the number found after the tan (4tan3x)

eh stationary point la po bn
li ti bizn (0, -0.5)