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Find the value of `cot54^@/(tan36^@)+tan20^@/(cot70^@)`

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Find the value of `cot54^@/(tan36^@)+tan20^@/(cot70^@)`
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`cot54^@/(tan36^@)+tan20^@/(cot70^@)=(cot(90^@-36^@))/(tan36^@)+(cot(90^@-70^@))/(cot70^@)`
`=tan36^@/(tan36^@)+cot70^@/(cot70^@)=2`
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