Question

Sin^2 45- cos^2 45 =?

Answer 1

Answer:

Hey mate,

sin 45° = 1/√2

cos 45° = 1/√2

According to the question:

sin^2 45° - cos ^2 45°

(1/√2) ^2 - (1/√2) ^2

1/2 - 1/2

answer is 0

Hope it helps you..