Question

Find the value of sin square 10 degree sin square 30 degree sin square 30 degree till sin square 80 degree

Answer 1

Answer:

5

Step-by-step explanation:

(sin²10°+sin²80°)+(sin²20°+sin²70°)+(sin²30°+sin²60°)+(sin²40°+sin²50°)+sin²90°

=(sin²10°+cos²10°)+(sin²20°+cos²20°).....+sin²90°

=1+1+1+1+1

=5