Question

is it right to say that Cos 60 degrees minus 30 degrees equal to Cos 60 into cos 30 degrees + sin 60 into sin 30​

Answer 1

Answer:

I think no because the answer will be 3/4

Step-by-step explanation:

cos( 60-30) = cos 60 . cos 30 + sin 60 .sin 30

√3/2 = 1/2 .√3/2 +√3/2 .1/2

√3/2 = √3/4 + √3 /4

√3/2 = √3+√3/4

√3/2= 3/4