plzz solve 2nd bit I want fastly
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MitheshShankar:
you mean 6th ?
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answer 6th........ okay
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tan 2A =cot(A-18*) (1)
tan 2A=cot(90*-2A) (2)
from (1) and (2)
cot (A-18*)=cot (90*-2A)
A-18*=90*-2A
A+2A=90*+18*
3A=108*
A=108*/3
A=36*
tan 2A=cot(90*-2A) (2)
from (1) and (2)
cot (A-18*)=cot (90*-2A)
A-18*=90*-2A
A+2A=90*+18*
3A=108*
A=108*/3
A=36*
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