Question

Amma had 4 daughter's Anna, Anni,Ammi.what is the 4th person's name? why?​

Answer 1

Answer:

4rth person is amma herself

Explanation:

I got it from Gogleso it's tru idk why

Answer 2

Explanation:

begin{gathered}\rm{cos^{-1}(cos\frac{7\pi}{6})\neq\frac{7\pi}{6}\:beacuse\:\frac{7\pi}{6}\:doesn't \: between\: 0\:and\:x.}\\\\\rm{cos^{-1}(cos\frac{7\pi}{6}})=\rm{cos^{-1}\rm{(cos(2\pi--\frac{5\pi}{6}))}}\\\\\rm{=\:cos^{-1} (cos-\frac{5\pi}{6}})}\end{gathered}

=\rm{\frac{5\pi}{6}.}=

6

5π

.