import pandas as pd

df = pd.DataFrame({

    'brand': ['Yum Yum', 'Yum Yum', 'Indomie', 'Indomie', 'Indomie'],

    'style': ['cup', 'cup', 'cup', 'pack', 'pack'],

    'rating': [4, 4, 5.0, 15, 5]

})

df

df.duplicated()

df.drop(columns='style').duplicated(keep=False)

b=df.eq(df.iloc[0]).all(axis='columns')
b

b[0]