Question: -Prove that the function f(x) = tan (sin x + cos x), x>0 is (0,7). always increasing on 0, (2019)

-Prove that the function f(x) = tan (sin x + cos x),

-Prove that the function f(x) = tan (sin x + cos x), x>0 is (0,7). always increasing on 0, (2019)

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