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Grade: 12
        

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


 

10 years ago

Answers : (2)

Askiitian.Expert Rajat
24 Points
							

Hi,

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

Similarly, find tan (pi/16)

Regards,

Rajat

Askiitian Expert

10 years ago
Nitish jha
28 Points
							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=
						
2 years ago
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