If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)
If 270º <x< 360º , show that √(2+√(2+2cosx)) = 2 sin x/4. Thank You! :)
what property is used, (commutative, associative, or distributive property)?
find the function that is finally graphed after each of the following transformations is applied to the graph of y=square root of x in the order stated. a) Shift up 2 units, b) reflect6 about the...
Find the value of q in the following system so that the solution to the system is {(x,y) : x - 3 = 4} x - 3y = 4 2x - 6y = Q Please Help I do not understand.
how do i change it to vertex form?
Which of the following is the function C(d) if C^-1 (e) = 10e + 3? A.) C(d) = d/10-3 B.) C(d) = 10d - 3 C.) C(d) = d+3/10 D.) C(d) = d-3/10
(i) Given that the line y=mx, where m is a positive integer, does not intersect the circle x2+ y2 -4mx +3=0, find the value of m. (ii) A line parallel to y=mx is a tangent parallel...
B is any point on the curve y2=2x and A is a fixed point with coordinates (2,6). Find the equation of the curve trace by the mid-point of AB. Ans: y2-6y-x+10=0 Thank...
Which Of the following is the real result of the equation below after completing the square and factoring? x^2 - 4x + 2 = 10 A.) (x-2)^2 = 12 B.) (x-2)^2 = 14 C.) (x+2)^2...
Prove that cos6x + sin6x = (5+3cos4x)/8 Thank You! :)
The mass, m milligrams , of a radioactive substance, present at time t years after first being observed, is given by m=300e-0.85t . Given that p milligrams is the amount of the substance that...
Fenitoine is administered intravenously through a bolus injection. The concentration, C µg/ml , of the drug in the blood, t hours after administration is given by C=4.86e-0047t . State the concentration...
The curve y=axn-23 passes through (3,4), (9,220) and (-1,k). Find the values of a, n and k. Ans: a=3, n=2 and k=-20 Thank You!:)
A curve has the equation y=3e2x. Find the value of d2y/dx2 at the point where the gradient is 3. Ans:6 Thank You! :)
Differentiate with respect to x. ln[ (x+3)3 cos3x / sin x ] Thank You ! :) Ans : 3/(x+2) -3tan3x -cotx
What is the domain & range of 1/sqrt x+4
Given that tan A =2/3 where pi<A<3pi/2, find, without using a calculator, the value of tan (1/2 A). Ans: (-3-√13)/2 Thank You! :)
A curve has the equation y= (x-a)[√(x-b)] for x≥b, where a and b are constants. It intersects the x axis at the point A with x=b+1. Show that the gradient of the curve at A is 1. Thank...
Which of the following is a correct equation for the line passing through the point (-2,1) and having slope m=1/2 Check all that apply A. y=1/2x + 2 B...
if f(x)=x^2+3x+5 what is f(a+h) A.) ( a+h)^2 + 3(a+h) + 5(a+h) B.) a^2 + 2ah + h^2 + 3a + 3h + 5 C.)h^2 + 3a + 3h + 5 D...