# CBSE Class 11-science Answered

**<div>Sir/Mam</div> <div> </div> <div>In theorem 1 of trignometric equations in NCERT textbook class 11 where</div> <div> </div> <div>sin x = sin y</div> <div> </div> <div>I cannot understand after this specific line of the theorem.<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=972d93750310623abed13bb278fa0855.png" alt="X equals space left parenthesis 2 n plus 1 right parenthesis straight pi space minus space straight y space space space space space space or space space space space straight X equals space 2 nπ plus space straight y space space space where space straight n element of straight Z" align="middle" /></div> <div> </div> <div>Can you please explain how we arrive at the solution <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=7a5a5554f7bd836bacd90395986ff52a.png" alt="X space equals space n straight pi space plus left parenthesis negative 1 right parenthesis to the power of straight n space end exponent straight y space where space straight n element of straight Z" align="middle" /></div> <div>by completely explaining the steps in between ?</div> <div> </div> <div> </div>**

Asked by Varsneya Srinivas | 12 Jun, 2016, 04:33: PM

Expert Answer

Answered by satyajit samal | 13 Jun, 2016, 11:37: AM

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