Question

prove that cos 60 cos 30- sin 30​

Answer 1

Answer:

COS 60*COS 30*-SIN 30

SIN 30 AND COS 30 WILL BE CANCLED

SO,COS 60 IS I/2

SO THE ANSWER IS 1/2

Answer 2

Answer:

cos60 cos30 - sin30

=1/2×√3/2-1/2

=√3/4-1/2

=√3-2/4