19. If tan2A = cot(A - 18"), where 2A is an acute angle, find the
value of A.
Answers
Answered by
0
Answer:
cot(90-2a)=cot(a-18)
90-2a=a-18
90+18=a+2a
108=3a
a=108/3
36
Answered by
0
Step-by-step explanation:
as, tan(@)=cot(90°-@)
given, tan2A=cot(A-18°)
cot(90°-2A)=cot(A-18°)
=> 90-2A=A-18
= 3A = 108
= A = 36°
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