Question

evaluate
{cos x} tan^-1(1/2) = x = 0

Answer 1

\[\cos (x)\tan^{-1} (\frac{ 1 }{ 2 })=x=0\]

Answer 2

is that your question?

Answer 3

cos(x)
[tan−1(1/2)]=x=0
what is
cos(tan−1(1/2))
I know cos(0) =1