Question

the value of sin²20°+sin²70° is______?​

Answer 1

Answer:

sin2 90° get your answer

Answer 2

Answer:

answer is 1

Step-by-step explanation:

$sin^{2} 20 + sin^{2} (90 - 20) \: \: \: (sin(90 - x) = cosx \\ sin^{2} 20 + cos^{2} 20 \\ 1 \: \: \: \: (sin^{2}x + cos^{2}x \: = \: 1)$

hope this will help you