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Why is it true that the cosine of 0 equals 1?
A cosine of a triangle is the length of the leg adjacent to a specific angle divided by the hypotenuse. Another way of putting it is that a cosine of an angle is x/r, or the x-coordinate of the endpoint divided by the distance of the endpoint from the origin. In trigonometry, if this angle were to be zero radians or zero degrees, the triangle would become a short, flat line pointing directly to the right. In that case, the distance of the endpoint from the origin and the x-value of this point are one and the same. Thus, the ratio between them is 1, and the cosine of zero is 1. Also, the power series for cosine is as follows (where the angle is in radians): cos(x) = 1 - x^2/2 + x^4/24 - x^6/720 - x^8/40320 + ... (The denominators are the factorials of even numbers.) If you put x=0, you get cos(0)=1.
What is min-max normalization?
Min-Max normalization is the process of taking data measured in its engineering units (for example: miles per hour or degrees C) and transforming it to a value between 0.0 and 1.0. The lowest (min) value is set to 0.0 and the highest (max) value is set to 1.0. This provides an easy way to compare values that are measured using different scales (for example degrees Celsius and degrees Fahrenheit) or different units of measure (speed and distance). The normalized value is defined as: (the value - the minimum) / (the range of values). As an example, consider a temperature reading with values 20, 24, 26, 27, 30. The minimum value is 20. The maximum values is 30. The data has a range of 10 degrees. For a temperature reading of 26, the normalized value is 0.6. (26 - 20) / 10 = 0.6.
How do you rewrite the equation y - 42x equals 24 as a function of x?
y-42x = 24 >> Add 42x to both sides << y=24+42x >> Subtract 24 from both sides << y-24=42x >> Divine both sides by 42 << x=(y-24)/42
Solve the equation z2 plus 6z plus 24 equals 0?
2z+6z+24=0 8z+24=0 8z= -24 z= - 3
What is 6x 24?
24 ; Identify the variable in the equation.5 + 9x = 68a. 5 b. 68 c. x d. 9x
