The Laplace transform of this function is equal to s over the quantity s squared plus one. Its Taylor series expansion is represented by the sum as n goes from zero to infinity of negative one to the n times x to the two n over quantity two n factorial. The hyperbolic version of this function is equal to the quantity (*) e to the x minus e to the negative x, all over two. A generalization of the Pythagorean theorem is known as the "law of" this function. For 10 points, name this reciprocal of the secant function, a trigonometric function often represented as adjacent over hypotenuse.
The Laplace transform of this function is equal to s over the quantity s squared plus one. Its Taylor series expansion is represented by the sum as n goes from zero to infinity of negative one to the n times x to the two n over quantity two n factorial. The hyperbolic version of this function is equal to the quantity (*) e to the x minus e to the negative x, all over two. A generalization of the Pythagorean theorem is known as the "law of" this function. For 10 points, name this reciprocal of the secant function, a trigonometric function often represented as adjacent over hypotenuse.
The Laplace transform of this function is equal to s over the quantity s squared plus one.