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[" 24.If "5 theta" and "4 theta" are acu...

[" 24.If "5 theta" and "4 theta" are acute angles satisfying "sin5 theta=cos4 theta" ,then "],[qquad [2sin3 theta,-sqrt(3)tan3 theta," is equal to "],[[" (a) "1," (b) "0," (c) "-1," (d) "1+sqrt(3)]]]

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