Value of Cos48°-Sin42°
Answers
Answered by
9
Step-by-step explanation:
cos 48° - sin 42°
= cos (90-42)° - sin 42° [ cos (90-x°) = x °]
= sin 42° - sin 42°
= 0
Answered by
13
Answer:
0
Step-by-step explanation:
cos48°-sin42°
cos48°-cos(90-48)°{cos(90-x)°=cosx°}
cos48°-cos48°
=0
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