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CBSE Class 11-science Answered

pls solve.
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Asked by pb_ckt | 14 Jun, 2019, 11:18: PM
answered-by-expert Expert Answer
x plus y equals straight pi plus straight z rightwards double arrow sin open parentheses straight x plus straight y close parentheses equals sin open parentheses straight pi plus straight z close parentheses rightwards double arrow sinx space cosy space plus space cosx space siny equals negative sinz rightwards double arrow open parentheses sinx space cosy space plus space cosx space siny close parentheses squared equals open parentheses negative sinz close parentheses squared rightwards double arrow sin squared straight x space cos squared straight y space plus space cos squared straight x space sin squared straight y plus 2 sinx space siny space cosx space cosy equals sin squared straight z rightwards double arrow sin squared straight x left parenthesis 1 minus sin squared straight y right parenthesis space plus space left parenthesis 1 minus sin squared straight x right parenthesis space sin squared straight y plus 2 sinx space siny space cosx space cosy equals sin squared straight z rightwards double arrow sin squared straight x minus sin squared xsin squared straight y space plus space sin squared straight y minus sin squared straight x space sin squared straight y plus 2 sinx space siny space cosx space cosy equals sin squared straight z rightwards double arrow sin squared plus space sin squared straight y minus sin squared straight z minus 2 sinx space siny left parenthesis sinx space siny minus cosx space cosy right parenthesis equals 0 rightwards double arrow sin squared plus space sin squared straight y minus sin squared straight z minus 2 sinx space siny space left parenthesis negative cos left parenthesis straight x plus straight y right parenthesis right parenthesis equals 0 rightwards double arrow sin squared plus space sin squared straight y minus sin squared straight z equals negative 2 sinx space siny space cos left parenthesis straight x plus straight y right parenthesis rightwards double arrow sin squared plus space sin squared straight y minus sin squared straight z equals 2 sinx space siny space cosz
Answered by Renu Varma | 16 Jun, 2019, 12:41: AM

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