
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:sine_of_pi_over_four
sine_of_pi_over_four
=

Transcribed Image Text:2.1. Accessing functions
In the question above, you accessed variables within the math module.
Modules also define functions. For example, math provides the name sin for the sine function. Having imported math already, we can write
math.sin(3) to compute the sine of 3. (Note that this sine function considers its argument to be in radians, not degrees. 180 degrees are equivalent to
radians.)
Question 2.1.1. A 4-radian (45-degree) angle forms a right triangle with equal base and height, pictured below. If the hypotenuse (the radius of the circle in
the picture) is 1, then the height is sin(). Compute that value using sin and pi from the math module. Give the result the name
sine_of_pi_over_four.
sin(0)
0 =
&
cos(0)
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