Question

(Sin30+cos30)-(sin60+cos60)is equal to (A)-1(B)0(C)1(D)2​

Answer 1

Answer:

(Sin30+cos30)-(sin60+cos60)

=sin30=1/2

=sin60=√3/2

=cos30=1/2

=cos60=√3/2

=(1/2+√3/2)-(√3/2+1/2)

!1+√3/2-√3+1/2

=1+1+√3-√3/2

=2/2

=1

since,(sin30+cos30)-(sin60+cos60) is equal to 1