Question

If tan 2A = Cot (A - 18"), then
Sec Cata)
S​

Answer 1

Answer:

Step-by-step explanation:

Given tan2A=cot(A−18  

0

)

⇒cot(90−2A)=cot(A−18  

0

)[∵tanθ=cot(90−θ)]

Comparing angles we get

90−2A=A−18

⇒90+18=A+2A

⇒3A=108

⇒A=  

3

108

​

 

⇒A=36  

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