Category : Mathematics

Answer: You can use the method of parts by taking secx as u and sec^2 as dv/dx. Here’s how to do that: first, apply integral reduction. Then, rewrite the integrand and expand the function tan(x)+sec(x). Apply u-substitution with u, then undo it and plug in solved integrals. Finally, you need to add the constant of ..

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Answer: Let’s go to basics, what is sin(θ). Sin(θ) is the ration of opposite side to hypotenuse. In above figure B angle = 90°, now the opposite side is AC and even hypotenuse is AC. Sin(θ) = opposite/hypotenuse = AC/AC = 1. It&#82..

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Answer: This term was created by Arthur Schuster in 1898 and it’s a component of other methods. It expresses signal’s spectral density. It doesn’t require analysis of sinusoid signals at low signal-to-noise ratios. But there are still moiseless responses and other signals that need a more precise estimation. There are 2 ways of using periodograms: ..

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Answer: It’s very important to remember these values. If you don’t know them you won’t be able to say the value of cos 0°. You can create a table with angles (in degrees) and several columns: sin, cos, tan, sec, cosec and cot. You can learn the values of sine or cosine because they represent ..

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