HELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELP​

Posted on

HELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELP​

HELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELPHELP HELP HELP HELP HELP​

Jawab:

Penjelasan dengan langkah-langkah:

Karena ∠B = 90°, maka

AC =  √(AB² + BC²)

AC = √(3² + 5²)

AC = √(9 + 25)

AC = √(34)

cos A = AB/AC

cos A = 3/√34

Selamat Belajar