Math, asked by nikhilrathi59180, 5 months ago

Evaluate cos 48° cos 42° - sin 48° sin42°
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Answers

Answered by sadhyatm234

0

Answer:

0

Step-by-step explanation:

cos48 cos42 - sin48 sin42

cos48 sin(90-48) - sin48 cos(90-48)

cos48 sin48 - sin48 cos48

= 0

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