Add New Description

Fill up the form and submit

কোনটি সঠিক?

\sin 120 ° = \sin 60 ° + \sin 60 °

\sin 120 ° = 2 \sin 60 ° \cos 60 °

\sin 120 ° = 2 \sin 60 ° 60 °

\sin 120 ° = - \frac{1}{2}

ANS : 2

Descrption

To add a description please, login first. click here to login

Cancel Login