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Question
Find the values of:
cot 225°
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Solution
cot 225° = `1/tan225^circ`
= `1/(tan(180^circ + 45^circ)`
= `1/(((tan180^circ + tan45^circ)/(1 - tan180^circtan45^circ))`
= `1/(((0+1)/(1-0(1))))`
= `1/((1/1))`
= 1
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