Tan theta =-4/3 where 90 lees then or equal to theta less than 180. find 2theta?

Question

845 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-22T16:22:47

#tan2x# = #24/7#

I'm assuming the question your asking is the value of #tan2x#
(I am simply using #x# instead of theta)

There is a formula that says,

#Tan2x# = #(2tanx)/(1-tanx*tanx)#.

So plugging in #tanx# = #-4/3# we get,

#tan2x# = #(2*(-4/3))/(1-(-4/3)(-4/3))#.

On simplification,

#tan2x# = #24/7#