If Cos 2x = cos 60° cos 30° + sin 60° sin 30°, then find the value of x

+1 vote
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asked Feb 15, 2018 in Mathematics by sforrest072 (157,439 points) 60 409 933
If Cos 2x = cos 60° cos 30° + sin 60° sin 30°, then find the value of x

1 Answer

+1 vote
answered Feb 15, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 15, 2018 by sforrest072
 
Best answer

The correct answer is

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