+91-87964 74404
FlagBACK
Question icon
Grade 12Trigonometry

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

Profile image of suchintan mondal
16 Years agoGrade 12
Answers icon

2 Answers

Profile image of Askiitian.Expert Rajat
16 Years ago

Hi,

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

Similarly, find tan (pi/16)

Regards,

Rajat

Askiitian Expert

Profile image of Nitish jha
8 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=

Other Related Questions on trigonometry

question mark
In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.
trigonometry
1 Answer Available

Last Activity: 3 Years ago

question mark
  • Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720
trigonometry
1 Answer Available

Last Activity: 4 Years ago

question mark
To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA
trigonometry
1 Answer Available

Last Activity: 4 Years ago

question mark
Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)
trigonometry
1 Answer Available

Last Activity: 4 Years ago

question mark
WHAT IS THE LIMIT WHEN X TOWARDS TO 0 OF sin6x/5x ? lim𝑥→0 𝑠𝑖𝑛6𝑥/5𝑥 
trigonometry
1 Answer Available

Last Activity: 4 Years ago