Where does cos(x) equal 1/4? Prove the following identity: sin(3x) = 3 cos^2(x) sin(x) - sin^3(x). What is the simplified form of (1 - cos^2(x)) / (cos(x)tan(x))? Simplify the expression (cos^2(x) - sin^2(x))/(1 - tan^2(x)). Verify the identity: sin 4x...
How does 0 = cosx - sinx simplify to 1 - tan x? Prove that (sin(x) - sin(3x)) / (sin^2(x) - cos^2(x)) = 2sin(x) ? What is the difference between sin^2x and sinx^2? Given sin(x-x) , which of the following equal the expression? a. -sin x b. sin x c. cos ...
What is the derivative of sin x minus cos x? d/dx(sinx-cosx)=cosx--sinx=cosx+sinx How do you prove the following identity sec x - cos x equals sin x tan x? you need this identities to solve the problem..that is something you have to memorized sec x= 1/cosx 1-cos2x= sin2x ...
cos(x)$cos^{-1}(y)$0 to tan(x)$tan^{-1}(y)$$\frac{\pi-}{2}$ to $\frac{-\pi}{2}$ Does Every Function Have an Inverse? Not every function has an inverse. A function has an inverse if and only if it is one-to-one (or bijective). A function f has an inverse functio...
At what points does the helix r(t) = (sin t, cos t, t) intersect the sphere x^2 + y^2 + z^2 = 50? (Round your answers to three decimal places.) If point C(3,1) is the centre of a circle with a radius of 5, which of the followin...
What is a derivative and what does it help you find? f(x, y) = 5/x + 8y What would be the derivative for f(x) or f(y)? What is the derivative of x^2. What is the derivative of f(x) = sin(x^x) for x > 0? What is the derivative of { f(x...
Since squaring both sides could equal: eix2 = eix2 No. Squaring ##e^{ix}## does not result in ##e^{ix^2}##. Squaring ##e^{ix}## results in ##\left(e^{ix}\right)^2## which can be simplified to ##e^{2ix}## ADDA said: equating the exponents of e would yield ...
Finally, the ionic current density j across the membrane, which would be equal to zero in the absence of ion channels, is set proportional to the fractional surface coverage by the embedded channel-forming clusters, θ0pS, since each newly formed channel makes a contribution to this current. ...
We are now in a position to answer the question, Does it matter if the basic arithmetic operations introduce a little more rounding error than necessary? The answer is that it does matter, because accurate basic operations enable us to prove that formulas are "correct" in the sense they ...
You may also wonder why, if we’re going to bump things up to 2-dimensions, we don’t we just talk about 2d vectors; What does −1−1 have to do with anything? Well, the heart and soul of Fourier series is the complex exponential, eiteit. As the value of tt ticks forward ...