CBSE Class 11-science Answered
please give The general solution of 2cos 2x + 1 = 0
Asked by GARIMA SRIVASTAVA | 12 Mar, 2011, 04:28: AM
Expert Answer
Dear Student,
Here is the solution:
2 Cos 2X + 1 = 0
Re-arrange the equation:
Cos 2X = - 1 / 2
Therefore 2X = 120o and 240o which gives:
X = 60o and X = 120o.
Hope this helps.
Regards
Team Topperlearning.
Answered by | 19 Mar, 2011, 07:12: PM
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