Question

sin75+cos65 in terms of trigonometric ratios of angles betweeen 0°and 45°

Answer 1

Heya !!

Refer to the attachment !!

# Gudiya

Hope it helps !! ☺✌

Answer 2

we know that sin(90-Ф) = cosФ
and cos(90-Ф)= sinФ

here we can write
sin(90-75) and cos(90-65)
=  cos15 and sin25


so both the angles are between 0° and 45°