Evaluate (1+sinѲ) (1-sinѲ) / (1+cosѲ) (1-cosѲ) and cotѲ=4/3
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it will be
1-sin²Ѳ/1-cos²Ѳ = cos²Ѳ/sin²Ѳ = cot²Ѳ
cotѲ = 4/3
cot²Ѳ = 16/9
1-sin²Ѳ/1-cos²Ѳ = cos²Ѳ/sin²Ѳ = cot²Ѳ
cotѲ = 4/3
cot²Ѳ = 16/9
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