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OOL S ARY AVI DYA MANDIR GROUP OF SCH PRELIM REVIEW- JAN UAR Y 2023 MATHEMATICS Mar ks:8 0 Time: 2 hr Std: X Date: 06/01/2023 --------------------------------------------------------------------------------------------------------- er prov ided separately. the pap Answers to this pap er mus t be written on first 15 minutes. You will not be allo wed to write during the stion pap er. This time is to be spe nt in reading the que the time allotted for writing the answers. The time given at the hea d of the pap er is ----------------------------------------- - tion B - ---------------------------------tion Sec A and any fou r questions from Atte mpt all the questions from Sec e rly sho wn whe nev er nee ded on the sam All ess enti al working sho uld be clea ks. working will resu lt in the loss of mar sheet. The omi ssio n of the ess enti al pap er. Do the rough working at the bottom of the [ J. s of questions are given in the brac kets The inte nde d marks for questions or part This pap er comprises 10 printed pag es. ----------------------------------------------------------------------------------------------------------------Section -A (40 marks) (Attempt all the questions from this Section) Que stio n 1 s from the given options: Choose the correct answers to the question (i) [15] 2 + bx + c = O is equal to If the discriminant of quadratic equation ax zero, then two equal roots are: (a) -b 2a (b) ~ 2a (c) (d) a -a 2b ...2
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