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[" 28.If "sin^(2)theta+3cos theta-2=0" ,...

[" 28.If "sin^(2)theta+3cos theta-2=0" ,then "cos^(3)theta+sec^(3)theta" is eque "],[[" to: "," (d) "(" a) "18," (c) "4," (d) "1/4]]

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