CBSE Class 11-science Answered
sin pie/7 + sin 2 pie/7 + sin 3 pie = root 7 / 8
Asked by Satyam Sharma | 04 Apr, 2013, 08:18: PM
Expert Answer
Please check the question again. If you even just try to substitute the value of sin(pi/7) and sin(2pi/7) and sin3pi on the LHS and RHS, they don't match.
Answered by | 05 Apr, 2013, 05:20: PM
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