tan 1/2 x + cot 1/2 x = 2
x = acute
cot 1/2 x = ........
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we put the value x=90 then tan 1/2×90 +cot 1/2×90 ==2
then tan 45+cot 45=2 ans
then tan 45+cot 45=2 ans
Naciel:
but no option say 2... just 1/2, 1/2 √2, 1/2 √3, 1/3 √2, and 1
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