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[" 5.If in a right "Delta ABC" ,right-an...

[" 5.If in a right "Delta ABC" ,right-angled at "B" ,"],[tan A=1," then the value of "2sinA cos A" ,"13." Deltaf "],[" is: "],[[" (a) "-1," (b) "2," (c) "3," (d) "1]]

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