Sines and cosines are orthogonal to each other: plot of sin θ vs. cos θ

Determine whether the statement is true or false. The graph of r = 1 + 2 cos theta is a limacon with an inner loop.

Analog and digital worlds: Part 1. Signal sampling and Fourier Transform

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Sines and cosines are orthogonal to each other: plot of sin θ vs. cos θ

Analog and digital worlds: Part 1. Signal sampling and Fourier Transform

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Analog and digital worlds: Part 1. Signal sampling and Fourier Transform

Tivadar Danka on X: This will surprise you: sine and cosine are orthogonal to each other. What does orthogonality even mean for functions? In this thread, we'll use the superpower of abstraction