Question

evaluate sin 45 degree sin 30 degree + cos 45 degree cos 30 degree​

Answer 1

hey r u from tvis velammal vidyala ponneri

sin 45 . sin 30 + cos 45 . cos 30

( 1 / √2 ) . ( 1 / 2 ) + ( 1 / √2 ) . ( √3 / 2 )

1 / 2√ 2 + √3 / 2√2

= 1 + √3 / 2√2