I think it is 0 but the correct answer is 3 (but it might be wrong as well)
Please show the working so that I can understand how you got to the answer.. thanks:)-applying L Hospitals rule
...........
sinx=cosx find x, I cant seem to get it, please show working.-sinx=cosx
sinx / cosx =1
tan x = 1
x = pi /4
or general solution
x = n pi + pi /4
answer-This one confuses me sometimes also. Its so
LHS = sin A + sin 3A + sin 5A + sin 7A
=(sin A + sin 7A)+ (sin 3A + sin 5A) = 2*sin 4A * cos 3A +2*sin 4A * cos A
= 2*sin 4A *[cos 3A + cos A] =(2)[ 2*sin 2A*cos 2A]*[2*cos 2A *cos A]
=(2)[ 2*{2*sinA
3x-r=r(-3+x)
Show line by line and explain steps please! Thanks-3x -r = r ( x -3)
3x -r = rx - 3r
3x - rx = -3r +r = -2r
x ( 3 - r) = -2r
x = -2r / ( 3- r)ANSWER-3x - r = r(-3 + x)Original problem
(x+4)^2-7(x+4)+6
please?-x^2 + 8x + 16 - 7x - 28 + 6
x^2 + x - 6
(x+3)(x-2)-First, make this simpler for yourself by replacing the (x+4) with a different variable, such as a
a^2 - 7a + 6
This might
if the curve with the equation y=2x^2+ax+g has a stationary point at x=-3 then a equals??
A.-6
B. 6
C. 3
D. -12
E. 10
thank you-y = 4x + a = 0
–12 + a = 0
a = 12. This is not one of your choices,
i was born on sept 26 1998 and im 12 if i was 16 , what year would i be born in?-If you were born in 1998 and your 12 then to figure out the year you were born in if you were 16..
First subtract 16 f
Okay. So here is the problem:
One number is 4 less than another number. The sum of the two numbers is four times their difference. What are the two numbers?
Please help me solve the problem using tw
Can you do me a step by step process?
thanks very much :D-If you type that right, assuming that its 1/3*(4-5)^2-4
the answer is: -3-i remember asking people for help like this idk if im reading the
The rate of change of the curve f(x) = -x^4 + 4x^2 +2x at x= -2 is?
Please show working out :))
Ciao thanks-Rate of change is the derivative so -4x^3+8x+2 is ther derivative
-4 (-2)^3 -16+2-4(-8)-14
VABCD is a pyramid with a horizontal rectangular base ABCD. AC meets BD at N and VN is perpendicular to ABCD. Given that VN=12cm, AB=DC=8cm and AD=BC=6cm, calculate:
(a) AC
(b) AV
(c) the volume of th
So Ive wondered for a while about this. If someone has 0 amount of something and someone else has 10 of that amount how many times more does he have than him? It obviously isnt 10 because the person w
If X (is greater than or equal to) -1, 4+√(5x+5)=9, then x=?
Please show your work
Thank you so much-as x>=-1,
4+sq. root 5x+5=9,
sq. root =5,
on squaring both sides,
5x+5=25,
5x=20,
x=4,
good luck !
Show work please, I am studying for the Sat II Math II
I am not sure how I can solve this.-y = x² - 2x + 7
y = kx + 5
If the curves are tangent, their slopes are equal at the point of tangency:
y = 2
A machine can cut some piece of work in 6 minutes and a man using a hand saw could do it in 18 minutes. After 4 minutes there is a power shortage and the wood must be cut by hand saw. How many minutes
