evaluate cot54/tan36 + tan20/cot70 - 2 tan 45
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Answer:
zero is the answer
Step-by-step explanation:
coz,
cot 54 = tan(90-54) = tan 36......... eq 1
tan 20 = cot(90-20) = cot 70........eq2
(cot 54/tan 36) + (tan 20/cot 70) -2 =
from eq 1 and 2
1 + 1 - 2=
0
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