Question

sin^2 82.5- sin^2 22.5​

Answer 1

Answer:

sin^2 82.5-sin^2 (90-82.5)

Step-by-step explanation:

Question is wrong in some where

8.5

57.5

Answer 2

Answer:

0

Step-by-step explanation:

Sin = a/c

a^2/c^2 (82.5) - a^2/c^2 (22.5)

82.5a^2/82.5c^2 - 22.5a^2/22.5c^2

a^2/c^2 - a^2/c^2

= 0/c^2