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lorasvet [3.4K]
3 years ago
11

The trigonometry book says: sin^2(t) + cos^2(t) = 1 Write a Python program that verifies the formula with the help of the Python

Math module. Note that the trigonometric functions in the module act on the angles in radians. Your program should perform the following steps 3 times: 1. Pick a random number between 0 and 180 degrees representing an angle in degrees, say Dangle 2. Convert the angle from degrees to radians, say Rangle 3. Use the Math module to find and print the values of sin(Rangle) and cos(Rangle), and 4. Compute and print the value of the above expression: sin^2(Rangle) + cos^2(Rangle). You can then visually verify if the result printed is 1 (or close to it).
Computers and Technology
1 answer:
MAXImum [283]3 years ago
6 0

Answer:

If you open your python-3 console and execute the following .py code you will have the following output. (Inputing 20 e.g)

Write the angles in degrees: 20

radian angles is:  0.3490658503988659

cosene( 0.3490658503988659 ) =  0.9396926207859084

sine( 0.3490658503988659 ) =  0.3420201433256687

sin^2( 0.3490658503988659 ) + cos^2( 0.3490658503988659 ) =  1.0

Explanation:

Code

import math

for i in range(1,4):

   angle = int(input('Write the angles in degrees: '))

   #mat library better works with radians

   angle_radians = (angle*math.pi)/180

   #print output

   print('radian angles is: ',angle_radians)

   print('cosene(',angle_radians,') = ',math.cos(angle_radians))

   print('sine(',angle_radians,') = ',math.sin(angle_radians))

   res = (math.sin(angle_radians))**2 + (math.cos(angle_radians))**2

   print('sin^2(',angle_radians,') + cos^2(',angle_radians,') = ',res)

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Trace the evaluation of the following expressions, and give their resulting values. Make sure to give a value of the appropriate
Masja [62]

Answer:

(a)\ 14"."43

(b)\ 0"0"7

(c)\ 2"8 - 2"611

(d)\ 7"(1 + 1)"46

(e)\ "1"23"4"30"7"17

Explanation:

Required

Evaluate each expression

The simple rules to follow are:

(1) All expressions in bracket will be evaluated based on its data type

(2) Divisions will return only integer values

(3) Integers immediately after string values will be concatenated (not added)

So, the results are as follows:

(a)\ 4 + 1 + 9 + "." + (-3 + 10) + 11 / 3

Evaluate till a string is encountered

4 + 1 + 9 = 14

Followed by "."

Then:

(-3 + 10)   = 7

11/ 3 = 3

"." + (-3 + 10) + 11/3 = "."73 -- because expressions after string operations are concatenated.

So, we have:

4 + 1 + 9 + "." + (-3 + 10) + 11 / 3 = 14"."43

(b)\ 8 + 6 * -2 + 4 + "0" + (2 + 5)

Evaluate till a string is encountered

8 + 6 * -2 + 4 =0

"0" + (2 + 5) ="0"7

So, we have:

8 + 6 * -2 + 4 + "0" + (2 + 5) = 0"0"7

(c)\ 1 + 1 + "8 - 2" + (8 - 2) + 1 + 1

Evaluate till a string is encountered

1 + 1 = 2

"8 - 2" + (8 - 2) + 1 + 1 = "8 - 2"611

So, we have:

1 + 1 + "8 - 2" + (8 - 2) + 1 + 1 = 2"8 - 2"611

(d)\ 5 + 2 + "(1 + 1)" + 4 + 2 * 3

Evaluate till a string is encountered

5 + 2 =7

"(1 + 1)" + 4 + 2 * 3 = "(1 + 1)"46 --- multiply 2 and 3, then concatenate

So, we have:

5 + 2 + "(1 + 1)" + 4 + 2 * 3= 7"(1 + 1)"46

(e)\ "1" + 2 + 3 + "4" + 5 * 6 + "7" + (8 + 9)

Since a string starts the expression, the whole expression will be concatenated except the multiplication and the expressions in bracket.

So, we have:

"1" + 2 + 3 + "4" + 5 * 6 + "7" + (8 + 9) = "1"23"4"30"7"17

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3 years ago
Draw a datapath that can perform the following set of register replacement and combinational operations. Assume all registers ar
Paladinen [302]

Answer:

Check the explanation

Explanation:

Kindly check the attached image below to see the step by step solution to the question above above.

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3 years ago
When passing a list of parameters to a stored procedure by name, you can omit optional parameters by:
amm1812

When passing a list of parameters to a stored procedure by name, you can omit optional parameters by omitting the parameter name and value from the list.

<h3>What is optional parameter?</h3>

It should be noted that optional parameter simply means a method that doesn't force pass arguments at calling time.

In this case, when passing a list of parameters to a stored procedure by name, you can omit optional parameters by omitting the parameter name and value from the list.

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Not all hardware is connected with wires, some hardware might be connected wirelessly with
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Answer:

B. Bluetooth technology.

Explanation:

A hardware platform can be defined as a collection of hardware such as an input hardware and output hardware device that are compatible with each other and the software application or program to be executed. All hardware platforms have their respective low level or high level machine language that are compatible with the software application. Some examples of a hardware devices are speakers, monitor, x86, i860, keyboard, MIPS, scanner, central processing unit (CPU) video game consoles (joysticks), IBM Z, ARM, unisys, powerpc, SPARC etc.

Generally, all hardware devices are connected with one another through the use of a wire such as cables or wirelessly such as Bluetooth, infrared etc.

Hence, not all hardware is connected with wires, some hardware might be connected wirelessly with Bluetooth technology.

A Bluetooth technology can be defined as a wireless standard used for transmitting and receiving data over a short-range of distance. Therefore, the operating radio frequency of a Bluetooth technology is 2.45 Gigahertz and for a distance of about 10 meters (30 feet).

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2 years ago
Write a program whose inputs are three integers, and whose outputs are the largest of the three values and the smallest of the t
arlik [135]

Answer:

import java.util.*;

public class Main

{

public static void main(String[] args) {

    Scanner input = new Scanner(System.in);

    System.out.print("Enter the first number: ");

    int n1 = input.nextInt();

    System.out.print("Enter the second number: ");

    int n2 = input.nextInt();

    System.out.print("Enter the third number: ");

    int n3 = input.nextInt();

 System.out.println("largest: " + LargestNumber(n1, n2, n3));

 System.out.println("smallest: " + SmallestNumber(n1, n2, n3));

}

public static int LargestNumber(int num1, int num2, int num3){

    int largestNum = 0;

    if(num1>=num2 && num1>=num3)

        largestNum = num1;

    else if(num2>=num1 && num2>=num3)

        largestNum = num2;

    else if(num3>=num1 && num3>=num2)

        largestNum = num3;

       

    return largestNum;

}

public static int SmallestNumber(int num1, int num2, int num3){

    int smallestNum = 0;

    if(num1<=num2 && num1<=num3)

        smallestNum = num1;

    else if(num2<=num1 && num2<=num3)

        smallestNum = num2;

    else if(num3<=num1 && num3<=num2)

        smallestNum = num3;

       

    return smallestNum;

}

}

Explanation:

Create function called LargestNumber that takes three parameters, num1, num2, num3. Find the largest number using if else structure among them and return it. For example, if num1 is both greater than or equal to num2 and num3, then it is the largest one.

Create function called SmallestNumber that takes three parameters, num1, num2, num3. Find the smallest number using if else structure among them and return it. For example, if num1 is both smaller than or equal to num2 and num3, then it is the smallest one.

Inside the main, ask the user for the inputs. Call the functions and print the largest and smallest.

8 0
3 years ago
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