Tan 62 degrees + cot 18 degrees / tan 28 degrees + cot 72 degrees - tan 62 degrees . cot 18 degrees
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Step-by-step explanation:
tan62°+cot18°/tan 28°+cot 72°-tan62°.cot18°
=cot28+tan72/tan28+tan18-cot28.cot18
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