Find the value of #(tan60-tan20)/(1+tan60tan20)#?

1 Answer

#tan(40^@)=0.839#

Explanation:

#"using the "color(blue)"addition formulae for tan"#

#•color(white)(x)tan(A+-B)=(tanA+-tanB)/(1∓tanAtanB)#

#"right hand side "#

#(tan60-tan20)/(1+tan60tan20)#

#=tan(60-20)^@=tan(40^@)=0.839#