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tan (pi/16)+2 tan(pi/8)+4=________________

tan (pi/16)+2 tan(pi/8)+4=________________


 

Grade:12

2 Answers

Askiitian.Expert Rajat
24 Points
11 years ago

Hi,

Find tan (pi/8) using tan(2x)=2tanx/(1-tan2x)

Similarly, find tan (pi/16)

Regards,

Rajat

Askiitian Expert

Nitish jha
28 Points
3 years ago
Apply formula of tanx=sin2x/1+cos2xX=pi/8=1/sqroot2/1+square root2Solve this and put tanpi/8 value again in same formula X=

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