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questions :Secant method
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[Member (365WT)]answers [Chinese ]Time :2019-01-31
In a right-angled triangle, the ratio of the oblique side of an acute angle to its neighboring edge (ie, the oblique side of the angle A is adjacent to the adjacent side) is called the secant of the acute angle and is represented by sec (angle). If each side of the right triangle is a, b, c, then secA=c/b.

(the full form of sec is secant)

In y=secx, any value of x that makes secx meaningful and its corresponding y value is (x, y). The image made in the Cartesian coordinate system is called the image of the secant function, also called the secant curve. .

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