please answer 3rd question...
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answer is equal to 36
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tan 2A= cot (A-18)
cot ( 90-2A)=cot (A-18)
cot will be cancelled as it is in both terms
90-2A=A-18
-2A-A=-18-90
-3A= -108
A= - 108/-3
A= 36
cot ( 90-2A)=cot (A-18)
cot will be cancelled as it is in both terms
90-2A=A-18
-2A-A=-18-90
-3A= -108
A= - 108/-3
A= 36
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