please do fast it's urgent
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Hope solution will satisfy you and please mark me as brainliest.
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1
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36 degrees
Step-by-step explanation:
tan 2a=cot(a-18)
cot (90-2a)=cot(a-18) (since tan a=cot(90-a) )
90-2a=a-18
90+18=a+2a
3a=108
a=108/3
a=36 degrees
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