6th Social-science Preboard Exam Real Paper with Solution PSEB | Class 6 Preboard | GAURAV CROOKS

11th class English model paper solution

What are the real solutions of 2absx^2 + 4absx-6=0 ?

A mixture of formic acid and oxalic acid is heated with conc. H_(2)SO_(4) . The gas producted is collected and treated with KOH solution, whereby the volume decrease by 1//6th . The molar ratio of the two acids (formic acid/oxalic acid) is

The equation sin^6x + cos^6x = a^2 has real solution then find the values of a

The number of real or complex solutions of x^(2)-6|x|+8=0 is (a) 6 (b) 7 (c) 8 (d) 9

Show that the system of equations 3x-y + 4z = 3, x + 2y-3z =-2 and 6x + 5y + lambdaz=-3 has at least one solution for any real number lambda. Find the set of solutions of lambda =-5

consider the system of equations : ltbr. 3x-y +4z=3 x+2y-3z =-2 6x+5y+lambdaz =-3 Prove that system of equation has at least one solution for all real values of lambda .also prove that infinite solutions of the system of equations satisfy (7x-4)/(-5)=(7y+9)/(13)=z