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Sum
Evaluate:
`(tan 65°)/(cot 25°)`
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Solution
`(tan 65°)/(cot 25°)`
= `(tan 90° - 25°)/(cot 25°)` ...(∵ tan(90°−θ) = cotθ )
= `( cot 25° )/( cot 25°)`
= 1
Concept: Trigonometric Identities
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