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  1. Does the term "sinusoidal" refer to BOTH cos graphs and sine

    Yes, sinusoidal refers to periodic motion Since Sin and Cos both exhibit periodic behavior and alternate with a range between -1 and +1 in a continuous wave, they are termed 'sinusoidal'. Tan is periodic, …

  2. Site Map - Trigonometry Lessons | Socratic

    I need help how do i determine the phase shift when i am given a graph, i need it for sinusoidal function. I know how to figure everything except phase shift (d)?

  3. Site Map - Sound waves Questions and Videos | Socratic

    A plane sound wave in air at 20°C, with wavelength 0.645 m, is incident on a smooth surface of water at 25°C, at an angle of incidence of 3.65°. How do you determine the angle of refraction for the sound …

  4. Question #eb249 + Example - Socratic

    Amplitude: This is actually answered by the last part; amplitude is just how far the wave travels from the x-axis at its furthest point. So, the amplitude for this particular wave is 1/2.

  5. Question #0968e - Socratic

    As described below: (source - (dictionary.com) 1. Hypotenuse (n) the side in a right-angled triangle that is opposite the right angle (Abbr. - hyp) Origin : (Latin hypotēnūsa < Greek hypoteínousahyp) - 1565 …

  6. Analyzing Concavity of a Function - Socratic

    Questions and Videos on Analyzing Concavity of a Function, within Calculus

  7. Calculations with wavelength and frequency - Socratic

    A wave has a wavelength of 15mm and a frequency of 4 hertz, what is its speed? If the speed of a wave is 335km/s and has a wavelength of 600km what is its frequency? If a certain ocean wave has a …

  8. If a, b and c are all acute angles in a triangle and sinA ... - Socratic

    Using the fundamental relation sin^2+cos^2=1, we can cosines from sines: sin^2 (a)+cos^2 (a)=1 \implies cos (a) = sqrt (1-sin^2 (a)) (we're taking the positive root because we know that alla angles …

  9. Question #f3eb0 - Socratic

    Mathematically: lim_ (x->2^-)f (x) = lim_ (x->2^+)f (x) This also shows why we're only interested in x = 2: It's the only value of x for which this function is defined as different things to the right and the left, …

  10. Answers created by Noah G - Socratic

    Q&A and Videos that make learning easy. Math, History, Chemistry, Algebra, Calculus, Biology and more.