sin7x-sin6x+sin5x
The differentiation of sin x plus cosx is cos (x)-sin(x).
It is a trigonometric function. It is also continuous.
The proof that sin2A plus sin2B plus sin2c equals 4sinAsinBsinC lies in the fact that (sin 2A + sin 2B + sin 2C) = 4 sinA.sinB.sinC.
cos*cot + sin = cos*cos/sin + sin = cos2/sin + sin = (cos2 + sin2)/sin = 1/sin = cosec
Neither.
Do you mean the sinus function, std::sin()? There is no need to write functions that already exist unless you intend to optimise the implementation. That's highly unlikely to be the case in a standard periodic function like sin().
sin7x-sin6x+sin5x
Y=sin X is a function because for each value of X, there is exactly one Y value.
The differentiation of sin x plus cosx is cos (x)-sin(x).
amplitude of the function y =-3 sin 3x
It is a trigonometric function. It is also continuous.
y= sin 3x
The sine function (sin x) can only have values in the range between 1 and -1. Perhaps you can work it out from there.
The proof that sin2A plus sin2B plus sin2c equals 4sinAsinBsinC lies in the fact that (sin 2A + sin 2B + sin 2C) = 4 sinA.sinB.sinC.
If you mean the arcsin function then the range is the whole of the real numbers - from "minus infinity" to "plus infinity". If you mean the cosecant function, the answer is the whole of the real numbers excluding (-1, 1).
[sin - cos + 1]/[sin + cos - 1] = [sin + 1]/cosiff [sin - cos + 1]*cos = [sin + 1]*[sin + cos - 1]iff sin*cos - cos^2 + cos = sin^2 + sin*cos - sin + sin + cos - 1iff -cos^2 = sin^2 - 11 = sin^2 + cos^2, which is true,