Question

cos 45 cos 30 + sin 45 sin 30​

Answer 1

Answer:

√3+1/2√2

Step-by-step explanation:

1/√2(√3/2)+1/√2(1/2)

=√3/2√2+1/2√2

=√3+1/2√2

hope this helps you

Answer 2

Answer:

2√6+2√2

Step-by-step explanation:

sin45=1/√2

sin30=1/2

cos45=1/√2

cos30=√3/2

1/√2.√3/2+1/√2.1/2=2√6+2√2