Question

Sin (x) = 0.3, if x and y are complementary, what is cos (y)

Answer 1

To find cos(y) when sin(x) = 0.3 and x and y are complementary angles, use the relationship between sine and cosine of complementary angles. Cos(y) = sin(x) = 0.3.

Step-by-step explanation:

In this question, we are given that sin(x) = 0.3 and x and y are complementary angles. To find cos(y), we can use the relationship between sine and cosine of complementary angles. Since sin(x) = 0.3, we know that cos(x) = sqrt(1 - sin^2(x)). Since x and y are complementary, cos(y) = cos(90 - x) = cos(90)cos(x) + sin(90)sin(x) = sin(x) = 0.3.