pythagorean identity造句

Using the Pythagorean identity twice, it follows that
Pythagorean identities didn't really work either.
Then factor and apply a pythagorean identity .-- talk ) 00 : 50, 21 October 2011 ( UTC)
where for the denominator we have used the Pythagorean identity 1 " cos 2 " a " } } and where } } denotes the length of the vector in the denominator.
The Pythagorean theorem is not closely related to the Pythagorean identity when the trigonometric functions are defined in this way; instead, in combination with the theorem, the identity now shows that these power series parameterize the unit circle, which we used in the previous section.
It's difficult to find pythagorean identity in a sentence. 用pythagorean identity造句挺难的

Because the " x "-and " y "-axes are perpendicular, this Pythagorean identity is actually equivalent to the Pythagorean theorem for triangles with hypotenuse of length 1 ( which is in turn equivalent to the full Pythagorean theorem by applying a similar-triangles argument ).