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Sum
Evaluate:
`(tan 65^circ)/(cot 25^circ)`
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Solution
`(tan 65^circ)/(cot 25^circ)`
= `tan(90^circ - 25^circ)/cot 25^circ` (∵ `tan(90^circ - theta) = cot theta)`
= `cot 25^circ/cot 25^circ`
= 1
Concept: Trigonometric Identities
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