Question

Prove tha ,Sin50°+sin40° =root2×sin85°

Answer 1

hi 123456789101121314151617181920

Answer 2

Answer:

45°

Step-by-step explanation:

$\sin(50 + 40) = 90 \\ \sin(90) = 1 \\ \sqrt{2} \times \sin(85) = 1 \\ \sin(85) = \frac{1}{ \sqrt{2} } = 45$