---- 2/3sin-1x
Depends. Slope of tangent = instantaneous rate of change. Slope of secant = average rate of change.
All of them...?
This question probably is referring to a 2% secant modulus, which can be the tensile, flexural or compressive modulus (slope of a stress/strain curve) of a material that is determined from calculating the slope of a line drawn from the origin to 2% strain on a stress/Strain curve.
In mathematics, a secant is a line that intersects a curve at two or more points. In trigonometry, the secant function is defined as the reciprocal of the cosine function, representing the ratio of the hypotenuse to the adjacent side in a right triangle. The secant line can also be used to approximate the slope of a curve between two points.
If you have a stress strain curve that is non-linear the secant modulus is the slope of a straight line connecting the zero strain point to the final strain point of interest
draw a line vertical from where strain is equal to 2.5%. where it hits your stress vs. strain curve, draw a line from there to the origin the slope of that line is your Es or secant modulus
yes
That is the correct spelling of the geometric term "secant."
Sometimes
a secant is a line containing a chord. A secant is a line that intersects the circle twice(or passes through a circle)
The tangent secant angle is the angle between the tangent to a circle and the secant, when the latter is extended.
Secant is a trignometric function. In a right triangle, the secant of an angle is the hypotenuse over the adjacent side. It is also the inverse of cosine. For example secant(x) = 1/cos(x)