Anybody outta here available now to discuss some problems in Paper1 maths A levels?

[Amy Bloom]

Not really
75 % !

Same situation here.

 

[bamteck]

Series questions!

Functions too

 

[mehdi1028]

sin of any number is between -1 and +1

Guys can you explain me why is this so:
-1<sinx<1?
and
Why tan a > sin a when a is 90 degrees?

BTW Series questions are easy..

 

[Amy Bloom]

sin of any number is between -1 and +1


BTW Series questions are easy..

Okay, cosine and and tan, same thing?
Series questions are easy as long as they are direct questions.

 

[deepum]

You know practice make perfect...but i believe perfect practice make perfect...choose best questions to practice that will make u confident for xams....
hey 2011 papers nt diffclt...need more difficlt one

 

[mehdi1028]

You know practice make perfect...but i believe perfect practice make perfect...choose best questions to practice that will make u confident for xams....
hey 2011 papers nt diffclt...need more difficlt one

The latest papers are more difficult than papers of 2001-2009..
Because "BACHAY TEZ HOTAY JA RAHAY HAIN" as quoted by our mths teacher.. lol

 

[mehdi1028]

Okay, cosine and and tan, same thing?
Series questions are easy as long as they are direct questions.

cosine isnt undefined anywhere. Its zero at those locations that tangent is undefined... because tan = sin/cos and cosine (a zero at those points) is in the denominator so sinx/0 becomes undefined

 

[Amy Bloom]

cosine isnt undefined anywhere. Its zero at those locations that tangent is undefined... because tan = sin/cos and cosine (a zero at those points) is in the denominator so sinx/0 becomes undefined

you mean to say that for cosine:
-1<cosx<1 is possible?

hummm... i don't get it for tan.

 

[mehdi1028]

you mean to say that for cosine:
-1<cosx<1 is possible?

hummm... i don't get it for tan.

On a graph of cos x u can see that cos x can take all values between -1 and 1
but tan x becomes asymptote(never touches) at -90 .. 90 .. 270 (where the values of cos x are zero)

 

[leosco1995]

Why tan a > sin a when a is 90 degrees?

Tan a approaches infinity towards 90 degrees, while sin a is 1 at 90 degrees.

 

[hussamh10]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w10_qp_11.pdf how to make the graph
q7 3rd part

 

[mehdi1028]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w10_qp_11.pdf how to make the graph
q7 3rd part

Using calculator calculate values of y from 0 to 2pi ... at 0, .5pi , 1pi , 1.5pi , 2pi
and then draw the graph.. More the values of pi... better the graph

 

[hussamh10]

plzzz reply f

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w10_qp_11.pdf how to make the graph
q7 3rd part

plzzz reply fast tmmrw is paper!!

 

[hussamh10]

Using calculator calculate values of y from 0 to 2pi ... at 0, .5pi , 1pi , 1.5pi , 2pi
and then draw the graph.. More the values of pi... better the graph

what about are there no amplitude or frequeny in tan graphs??

 

[mehdi1028]

what about are there no amplitude or frequeny in tan graphs??

you need to draw the graph for the given range

 

[hussamh10]

you need to draw the graph for the given range

ok

 

[daviruss]

hey guys i have a question i rlly get stuck when he asks u to the range for the function tht contain cosine or sine or tan plzz how to find the range
for example: 3-2sin(x) for the domain 0<x<2(pi) plzz help and thx u

 

[deepum]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_11.pdf
no. 5(ii)

 

[mehdi1028]

hey guys i have a question i rlly get stuck when he asks u to the range for the function tht contain cosine or sine or tan plzz how to find the range
for example: 3-2sin(x) for the domain 0<x<2(pi) plzz help and thx u

-1 < sin x < 1
Multiply by 2
-2< 2sin x < 2
add 3 on both sides
-1< 3-2sin x < 5

 

[mehdi1028]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_11.pdf
no. 5(ii)

For greatest value put pi and for the least value put 0