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CBSE Class 12 Pre Board 2022 : Mathematics - Periodic Test (Silver Bells School)

2 pages, 20 questions, 0 questions with responses, 0 total responses,    3    0
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St. Joseph's School (SJS), NTPC Kahalgaon
Xl-Xll Science with Computer
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SI LVERBELLSSCHOOL UNI TTEST 202122 MATHEMATI CS CLASS XI I Max.Mar ks-50 Gener alI nst r uct i ons: 1.Al l quest i onsar ecompul sor y . 2.Thequest i onpaperconsi st sof20quest i onsdi v i dedi nt of oursect i onsA, B, CandD.Sect i on A compr i sesof6quest i onof1mar keach.Sect i on Bcompr i sesof3quest i onsof2mar kseach. Sect i on Ccompr i sesof6quest i onsof3mar kseachandSect i on Dcompr i sesof4quest i ons of4mar kseach. 3.Pl easecheckt hatt hi squest i onpapercont ai ns2pr i nt edpages. 4.Useofcal cul at ori snotper mi t t ed. Sect i onA Q. 1 I fA= t hent hedet er mi nantofA2 2Ai s ( a)5 Q. 2 Q. 3 Q. 4 Q. 5 ( c)5 ( b)1 ( c)abc ( d)25 = ( a)0 I f ( d)a+b+c =kxy z, t henk= ( a)1 ( b)3 ( c)4 ( d)2 I fA=[ aij]i sasquar emat r i xofor dern nandki sascal ar , t hen| kA| = ( a)kn| A| ( b)k| A| ( c)kn 1| A| ( d)none I fA= andAB=It henB= ( a) Q. 6 ( b)25 ( b) ( c) ( d) 1 sec2( Tan 12)+cosec2( Cot 3)i sequal t o ( a)1 ( b)5 ( c)10 Sect i onB ( d)15 Q. 7 I f t henf i ndt hev al uesof sat i sf y i ngt heequat i on . Q. 8 Q. 9 Fi ndt hev al ueofxi ft hear eaof i s35squar ecmswi t hv er t i ces( x, 4) , ( 2, 6)and( 5, 4) . Ev al uat e: Sect i onC Q. 10 Fi ndt hemat r i xXf orwhi ch . Q. 11 Pr ov et hat : .

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