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Evaluate : ksncksdihqudqosp,zmbwyfgeinchveyfh2iknqbdhqvyvhcakmxlqoxmq cos 48° – sin 42°

 Evaluate : 
ksncksdihqudqosp,zmbwyfgeinchveyfh2iknqbdhqvyvhcakmxlqoxmq
 cos 48° – sin 42° 

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

cos 48° - sin 42°
To simplify this,
convert the cos function into sin function
We know that,
48° is written as 90° - 42°,
which is equal to the sin 42°.
= cos (90° - 42°) - sin 42°
Substitute the value,
to simplify this equation
= sin 42° - sin 42°
= 0

Thanks

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