Question

Cos 48 _ sin 42 give me answer fast

Answer 1

Answer:

Step-by-step explanation:

By complementary angles concept,

Sin(90-A)= Cos A

=> Cos(90- 42)- Sin 42

=> Sin 42- Sin 42.....

=> 0/...........

Answer 2

Answer:

0

Step-by-step explanation:

$= > cos48 - sin42 \\ \\ = > cos48 - sin(90 - 42) \\ \\ = > cos48 - cos48 \: \: \: \: \: \: \: \: \because \: \: sin(90 - \theta) = cos \theta \\ \\ = > 0$