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10. If cos (pi/4-x)cos2x+sinxsin2xsecx= cosxsin2xsecx+cos (pi/4+x)cos2x then posSible value of secx |
| Answer» 10. If cos (pi/4-x)cos2x+sinxsin2xsecx= cosxsin2xsecx+cos (pi/4+x)cos2x then posSible value of secx | |