Please can anyone help me to solve the following question, I have no idea to solve that 👀.
I found the answer, thanks. Hope answer will help someone
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$\begingroup$ Don't use images as main content of your post. This makes your question impossible to search and inaccessible to the visually impaired; we don't like that. Please transcribe text and mathematics (note that you can use LaTeX). $\endgroup$ – D.W.♦ Feb 26 '20 at 6:42
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