Math, asked by kansariwalaharpdhn2z, 1 year ago

find the value of x if cos 2x = cos 60*cos 30 + sin 60*sin30

Answers

Answered by AnanyaAna123
3
cos2x=1/2*√3/2+√3/2*1/2
cos2x=√3/4+√3/4
cos2x=2√3/4
cos2x=√3/2
cos2x=cos30
2x=30
x=15


HOPE THIS HELPS YOU BUDDY ✌️
IF YOU LIKE IT MARK IT AS BRAINLIEST
Previous Question
Next Question
Similar questions
Physics, 7 months ago
symbol for parallel plate constant capacitor and variable capacitor...
Math, 7 months ago
Sahil pasted 12 stamps on each page of his book. If he used 32 pages, how many stamps did he paste? Answer:​...
Science, 7 months ago
11. Which of the following is the least effective strategy for encoding information into long-term memory? a. relating new information to information already in memory b. mentally repeating new information c. structuring the information using mnemonics ​...
Physics, 1 year ago
Please solve question no-2......Pease please hurry up.....
English, 1 year ago
Write a letter To editor telling about the potholes on the road and poor drainage system and the uncover drain during monsoon...
English, 1 year ago
essay on role of citizens in pollution control...
Math, 1 year ago
find the circumcentre of a triangle whose vertices are (1,0)(-1,2)(3,2)...
Science, 1 year ago
Ashwin mother is able to swim in a forward direction only when he is pushing the water in the backward direction...