Question

The cosine value of the complementary of 45° is​

Answer 1

Step-by-step explanation:

Therefore, both the sine and cosine of 45° equal 1/√2 which may also be written √2 / 2. Next consider 30° and 60° angles. In a 30°-60°-90° right triangle, the ratios of the sides are 1 : √3 : 2.