English: So, here what we have observed that the 𝑢_(𝑥𝑥) + 𝑢_(𝑦𝑦) = 0 that means, this 𝑢 is harmonic.
Telugu: ఇక్కడ మనం 𝑢_(𝑥𝑥) + 𝑢_(𝑦𝑦) = 0 అని గమనించాము.