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Sum
`\text{Evaluate }\frac{\tan 65^\circ }{\cot 25^\circ}`
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Solution
65° + 25° = 90°
`\therefore \frac{\tan 65^\circ }{\cot 25^\circ }=\frac{\tan(90^\circ -25^\circ )}{\cot25^\circ }=\frac{\cot 25^\circ}{\cot 25^\circ }=1`
Concept: Trigonometric Ratios of Complementary Angles
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