(1 - tan²A)/cot²A = tan²A
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Answer:
A=0°
Step-by-step explanation:
1/cot^2A-tan^2A/cot^2A=tan^2A
tan^2A-tan^4A=tan^2A
tan^2A(1-tan^2A)=tan^2A
1-tan^2A=1
tan^2A=0
A=0°
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