Using sin=y/2, cos=x/r, tan=y/x
prove the identity 1+tan^2=1/cos^2
Cant figure this one out.
Thanks in advance!-This is a version of 1+( tanB)^2=(sec B)^2
But you also need Pythagorean theorem, x
what is the limit of [ (1+h)^4-1 ]/ h as h approaches 0?
Can you explain the steps also? thanks-First expand (1+h)^4 to get
(1+h)^4=(1+h)^2*(1+h)^2)=(h^2+2h+1)*(h…
=h^4+2h^3+h^2+2h^3+4h^2+2h+h^2+2h+1
Use creamers rule to find the solution of the following system of equations :
7x-5y= 1
-6x-7y=1
The determinant of the coefficient matrix is :
D=
[ ?? ]
[ ?? ]= ?
x=
[ ?? ]
[ ?? ]
------------ = ?D
g(x)=square root of x^2-4x
show me the steps
Thank You:)-I assume that you are working with only real numbers. If that is the case, then it is clear that the number under the square root must be posi
P(x1, y1) is a point on the circle x^2 + y^2 = r^2
Show that tangent at P has gradient - x1/y1 using implicit differentiation and not using implicit differentiation.
Please help im stuck!-Using impli
I was reading that you can do such thing and want it to try it out, but now I dont need it. How can I delete it? Thanks for your help!-I believe its under Mem or memory, which is second/shift +. Then
3y + 4x = 25, x^2 + y^2 = 25.
Please show me the full steps to solve this using the any simultaneous equation method (substitution, elimination, addition, etc). Thanks.-solve the first equation for y
Prove that the number x that satisfy 2 ^ x = 5 is not a number rasional.
please help me-Ususally you solve a problem like this by assuming x is the rational a/b, where a and b are integers, and tryin
Math-(3) x (x+3) (x-1)
(3x+9) (x-1)
3x2 - 3 +9x - 9-Distributive property! You r gonna multiply 3(x) 1st write that down, then 3(3) write that down! Then you shall get 3x+9 .. then do 3(x) write that
tan(2x) = - root 3
All Ive got is
(2tanx)/(1-tan^2x)=- ((3)^(1/2)) using the property, but now what?
thanks-Ill solve in degrees, you can convert to radians if you need to.
You dont need to use d
The area of rectangle bounded by the |x|=2, the x-axis and y=1 is?-Required area (A) = int(ydx, -2,2)
=int(1dx, -2,2)
=([x],-2,2)
=2-(-2)
=4 sq. units-|x|=2 x has values of -2 and 2or x,y of (-2, +/-
I know it is a hyperbola but how can I explain on my assignment that the range is +infinte. Although I have to that Sn=1+3+4+7+...+Ln=L(n+2) - 3 using mathematical induction-1st : it is not a hyperbol
Solve each exponential equation. Round your answers to four decimal places when necessary.
22 e^3 (x-1) = 11
this is what i got
x = (1+2 e^3)/(2 e^3)-answer is valid if the problem is as typed and
