According to Ubiratàn D’Ambrosio and Helaine Selin, the spherical law of sines was discovered in the tenth century. It has been attributed to Abu Mahmud Khojandi, Abu al-Wafa’ Buzjani, Nasir al-Din al-Tusi, and Abu Nasr Mansur, among others. In the book of Ibn Mu ‘ādh al- Jayy...
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from the trigonometry table, use the value of sin 60° which is equal to √3/2. hence, the value of sin 120 degrees is √3/2 method 2 by using the value of cosine function relations, we can easily find the value of sin 120 degrees. using the trigonometry formula, sin (90 + a)...
Plan an investigation using the scientific method to investigate the factors affecting the period of the pendulum. Explain the meaning of confidence interval and give an example. Describe how to use Ohm's Law. Given the resistance and current how do you find the voltage, or ...
Calculating Sine Value using SIN and RADIAN Function in Excel Now let us see how we can use SIN more effectively when we don’t know the exact radian value for a degree. We will use the RADIANS() to find the radian value, which we will pass as an argument to the SIN function. So,...
Sine and cosine live on the unit circle (radius 1). The other functions use a radius of secant (tan/sec) or cosecant (cot/csc).Q3: What's the swapped function?We make a mini-triangle by shrinking the original triangle down, and rotating so dx matches the side of length 1. It ...
these methods, we can factorise the polynomials by the use of general algebraic identities . similarly, if the polynomial is of a quadratic expression, we can use the quadratic equation to find the roots/factor of a given expression. the formula to find the factors of the quadratic expression...
Such interference can be reduced by the use of sound-absorbing materials on reflecting surfaces. On the other hand, interference can improve an auditorium's acoustical qualities. This is done by arranging the reflecting surfaces in such a way that the level of sound is actually increased in the...
only to find that the roar of the jet engines prevented him from enjoying the audio.He started making calculations right there on the plane to see if it was possible to use the headphones themselves as a noise-reducing agent.Boseintroduced the first noise-canceling headphones a decade later. ...