Question

(sin 30+cos30) -sin60+cos60​

Answer 1

Answer:

0 is the answer

sin 30+cos 30=1/2+√3/2

sin 60-cos 60=1/2+√3/2

=(1/2+√3/2)-(1/2+√3/2)

=0

Answer 2

sin 30+ cos30- sin60+ cos60

= cos 60 + sin 60 - sin 60 + cos 60

[sin (90-A)= cos A; cos(90-A)= sin A]

= 2( cos 60)

=2( 1/2 )

= 1