Question: Please I need solution for this issue with all the details .please you can write the answer typing and not write by hand,so that I

Please I need solution for this issue with all the details .please you can write the answer typing and not write by hand,so that I can read and understand your answer clearly.I need step by step solution to the following this question asap.

Question :Show that var(x+y) =var(x) +var(y) + 2cov(x, y), starting from the definition of variance in the formula sheet.

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