Question

cos45*cos30+sin45*sin30 plz solve this friend

Answer 1

$\cos(45) = \frac{1}{ \sqrt{2} }$
$\cos(30) = \frac{ \sqrt{3} }{2}$
$\sin(45) = \frac{1}{ \sqrt{2} }$
$\sin(30) = \frac{1}{2}$
....

Answer 2

Hey!!!
here is your answer..

It's a trigonometry question so it is tricky..

Cos45Cos30+sin45sin30

1/√2.√3/2+1/√2.1/2

take out the common one

1/√2(√3/2+1/2)

√3+1/2√2
hope this answer helps........