can anyone please help me with this question. thanks!


differentiate sin3x/2cos2x

can anyone please help me with this question. thanks!


differentiate sin3x/2cos2x

hello, i would appreciate if someone can help me with these questions thanks in advance


1. Express the equation 100^x-10^(x+1)=11 as a quadratic equation in 10^x. Hence, find the value of x,correct to 2 decimal places.

2. (lgx)^2-lgx=0

3. Given y=e^(-1/2x), find the equation of the straight line in order to obtain the solution to the equation x+2lg(3x-1)=0

Thank You!

Thank you so much! I have 1 last question


The arrow diagram shows part of the mapping h(x)=12/ax+b, x≠-b/a
Calculate the values of a and b. Hence find

(i) the element that has an image of -2 under this mapping,
(ii) the values of x for which h(x)=x

I am in sec 2 this year. and yup, i am currently doing functions http://i48.tinypic.com/25kq4hs.jpg\">

Augmum:

LOL123:

pls help me


The function f is defined by f(x)=1-2x.
(a) Find the range of f corresponding to the domain -1≤x<3
(b) Find the domain of f corresponding to the range 0≤f(x)<5

thanks

Post on behalf on my gal....

(a) subst x = -1 into the equation
y = 1 - 2(-1)
y = 3
Substx = 3 into the equation
y = 1 - 2(3)
y = -5

Thus, the range of f is : { y: -5 < y ≤ 3}

(b) qn means that: find the range of values of x such that f(x) = 0
1 -2x = 0
2x = 1
x = 0.5

1 - 2x = 5
2 x = -4
x = - 2

{x : -2 < x ≤ 0.5 }

Note: The domain of the function refers to the x value while the range of the function refers to the y value.

:thankyou:

i have another question

The diagram shows the graph of the curve y=4/x-1 for x>1

With the aid of the graph http://i47.tinypic.com/2w6w4sk.jpg\"> , find

(a) the range of f(x)=4/x-1 for the domain 2<x<5,
(b) the domain of f defined by f(x)=4/x-1 corresponding to the range 1<f(x)<3.

pls help me


The function f is defined by f(x)=1-2x.
(a) Find the range of f corresponding to the domain -1≤x<3
(b) Find the domain of f corresponding to the range 0≤f(x)<5

thanks

Poet2010:

LOL123:

Hi! Does anyone know if there is school bus transport to rvhs around the choa chu kang area? thanks

Good Day,

Yes, there's a school bus transport from CCK MRT station. Transport company, Say Guan Transport (Tel: 6472 6046) person to contact: Anna

Have A Great Day. Cheers

:thankyou:

Hi! Does anyone know if there is school bus transport to rvhs around the choa chu kang area? thanks

what is the difference between StRA and HiRA?

what are disciplinary concepts?