Question

evaluate Cos 48° – Sin 42°​

Answer 1

Answer:

$\cos(48) - \sin(42)$

$\sin(90 - 48) - \sin(42)$

$\sin(42) - \sin(42)$

$= 0$

Answer 2

Cos(48)-sin(90 - 48)
Cos(48) -Cos(48)
0