Math, asked by asllaiswarya, 3 months ago

show that cos 42 +cos 78+cos 162=0

Answers

Answered by thiru91

0

Answer:

the answer is

Step-by-step explanation:

42+78=120-162=42

Answered by nithya1591

4

Answer:

hope its helpful ˙˚ʚ(´◡`)ɞ˚˙

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