Question

Find the value of cos 30 cos 60 -sin 30 sin 60​

Answer 1

•ᏟϴᎡᎡᎬᏟͲ ϘႮᎬՏͲᏆϴΝ:-

find the value of Sin60° cos30° - sin30° cos60°

•ᏟϴᎡᎡᎬᏟͲ ᎪΝՏᏔᎬᎡ:-

some remember point in this question

Sin60°=√3/2

cos30°=√3/2

sin30°=1/2

cos60° =1/2

solution :- Sin60° cos30° - sin30° cos60°

=(√3/2).(√3/2)-(1/2).(1/2)

=(3/4)-(1/4)

=1/2 ans.