Question

Sin^2 20°+sin^2 70=?
Full explanation

Answer 1

Answer:

above picture is the explanation

Answer 2

Answer:

1

Step-by-step explanation:

sin^2 20 + sin^2 70 =

sin^2 20 + cos^2 20 (cos^2 20=sin^2 (90-20)) =

1 (sin^2 + cos^2 = 1)