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[" 5.For the primicipal valuate each of ...

[" 5.For the primicipal valuate each of the following: "],[[" (i) "cos^(-1)(1)/(2)+2sin^(-1)(1)/(2)," INCERT,CBERITAL "],[" (ii) "cos^(-1)((1)/(2))-2sin^(-1)(-(1)/(2))," ICBSEZORI "],[" (iii) "sin^(-1)(-(1)/(2))+2cos^(-1)(-(sqrt(3))/(2)),],[" (iv) "sin^(-1)(-(sqrt(3))/(2))+cos^(-1)(-(sqrt(3))/(2)),]]

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