If tan2A=cot (A-18°) then what is the value of A
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Answer:
36
Step-by-step explanation:
tan2A=cot (A-18)°
tan2A can be written as cot (90-2A)°
cot (90-2A) = cot (A-18)
eliminate cot on both sides
90-2A = A-18
90+18 = A+2A
108 = 3A
A = 108/3
A = 36
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