Question

sin 60 into cos 30+ sin 45 into cos 45​

Answer 1

Step-by-step explanation:

sin60×cos30+sin45×cos45

√3/2×√3/2+1/√2×1/√2

√3/4+1/√4

√3+1/4

√4/4

=1

Answer 2

Answer:

please ignore the above answer... the explanation is wrong... though the answer is 1

Step-by-step explanation:

sin 60=cos30=[sqrt(3)]/2

sin 45=cos 45=1/sqrt2

sin 60x cos 30 + sin 45x cos 45

=3/4 +1/4

=4/4 =1