JEE Mains 2021 Mathematics Sample Paper for Practice
Sample Questions for Section on Numerical Value-Mathematics
Q.1: Let α and β be two roots of the equation x 2 +2x+2=0, then α 15+β 15 is equal to_____________. Answer: 256
Q.2: Consider a group of 5 females and 7 males. The number of different teams consisting of 2 females and 3 males, that can be formed from this group, if there are two specific males A and B, who refuse to be the member of the same team, is ________________.
Q.3: Let a1, a2, a3,…be an A.P., S = ∑ai and T=∑a2i-1. If a7=37, and S-2T=75, then a15 is equal to____. i=1 i=1
Q.4: If y = y (x) is the solution of the differential equation x +2y = x2 satisfying y (1) = 1, then 16 y (1/2) is equal to _______.