Question

If tan alpha=1/7 and sin beta=1/root 10 then prove that alpha+2beta=pi/4?

Answer 1

Tan alpha = 1/7

Alpha = 0.0451672353 pi

 

Sin beta = 1/ root 10

 

Beta = 0.10241638233 pi

 

alpha + 2beta = 0.0451672353 pi +  2x0.10241638233 pi   

= 0.25 pi 

= pi/4    Proved