Question

pls answer this question I have exam tommorow​

Answer 1

here is your answer

it may help you

Answer 2

sin(19)

2

+sin(71)

2

identitiesoftrigonometry:

sin(θ)

2

+cos(θ)

2

=1

sin(θ)=cos(90−θ)

byusingsecondformula:

sin(71)=cos(90−71)

sin(71)=cos(19)

use this in equation: