Question

Ifu=x+ tan-1-y tan-1}, then
?one in
= ?
(A)
x² - y²
x² + y²
(B)
x² + y²
x² - y²
X - y
(C)
(D)
X + y
X - y
X + y​

Answer 1

Answer:

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Step-by-step explanation:

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