Mathematics: Post your doubts here!

[A star]

i think using radian is not mandatory but u can use it as a safeguard . ask someone else as i am not sure upon this point

 

[ShreeyaBeatz]

Guys till how many significant figures should we round our answers in the paper tomorrow ..!! pleasse..quick.

3 s.f

teach me this !
f(x)=4-sinx
- find the set of values of k for which the equation f(x)=k has no solution


my xam is just 4 hrs away

 

[Buzzkiller]

is

well in 6i) cos(x/2 + pie/6) =1
cos-1(1)=x/2 +pie/6
0=x\2 +pie/6
pie/3 =x
6ii f(g)= 1 hence sub
cosx/2 +pie/6 =1
cosx/2 =1-pie/6
cosx= 0.4764*2
cosx=0. 9528
x=0.31 and for the negative value we have to take x= -0.31
x=+-0.31

isn't the answer to the first part minus pie/3.
Can you recheck it again,please?

 

[A star]

sorry forgot to put the minus sign

is
isn't the answer to the first part minus pie/3.
Can you recheck it again,please?

 

[A star]

3 s.f

teach me this !
f(x)=4-sinx
- find the set of values of k for which the equation f(x)=k has no solution


my xam is just 4 hrs away

you sure this is the full question

 

[Mayedah]

Thankyouuuu

 

[Maz]

so me u daredevil asd mustafamotani asd and syed will be there to answer queries

Me too. Although i hate stats, especially permuations and combinations.

 

[A star]

all of us hate it

 

[syed1995]

all of us hate it

But we have to solve it anyway.

 

[PANDA-]

i think using radian is not mandatory but u can use it as a safeguard . ask someone else as i am not sure upon this point

It's mandatory if the domain is given in radians... like 0 < x < pi. It clearly says in the ms, must be in radian.
1.5 hrs left for my exam, terrified here.

 

[HorsePower]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w12_qp_11.pdf
Q7 ii) plzzz

 

[Mohsin41]

hope for the best...... Insha Allah we will do our best.

 

[PANDA-]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w12_qp_11.pdf
Q7 ii) plzzz

PhyZac solved this question before, search this thread for it.

 

[snowbrood]

PhyZac solved this question before, search this thread for it.

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_12.pdf
q9(i) its urgent

 

[snowbrood]

PhyZac solved this question before, search this thread for it.

pm me ur number

 

[Mohsin41]

n

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w12_qp_11.pdf
Q7 ii) plzzz

If n is 10 than the answer will be 360/10=36 and for the range within 360 you can get further values e.g 36 +- 360 where n can be 1,2,3,4......

 

[PANDA-]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_12.pdf
q9(i) its urgent

I couldn't solve 9 i (a) when i tried to solve this paper before.
But 9 i (b) is easy... just equate it to 1 and solve.

 

[snowbrood]

I couldn't solve 9 i (a) when i tried to solve this paper before.
But 9 i (b) is easy... just equate it to 1 and solve.

same here

 

[snowbrood]

n
If n is 10 than the answer will be 360/10=36 and for the range within 360 you can get further values e.g 36 +- 360 where n can be 1,2,3,4......

could u solve my question

 

[PANDA-]

I got it...
The limits of the graph of cos^2x are 0 --> 1
multiply both sides by -4
0 ---> -4 ,,,, since 0 is greater than -4 u flip it
-4 ----> 0
add 3
- 1 ---> 3