Question

Which pair of angles has congruent values for the sin x and the cos y?

Answer 1

Sin x  = cos (90-x)

eg sin 42 = cos(90-42) = cos 48

so the answer is B

Answer 2

Answer:

The correct answer is option B,  42;48

Step-by-step explanation:

The congruent angles are complementary to each other and thus their sum shall be equal to 90 degrees

$sin x = cos (90-x)$

Let put x = 42 degrees in the equation, we get -

$sin 42 = cos(90-42) = cos 48$

Thus the congruent values for sin x and Cos Y is 42, 48