(a)Which of the following is a statement?(iii)`x^2+5x+6=0`

(a)Which of the following is a statement?(i) x+2=9

Which of the following is a statement? (i) x+2=9 (ii) 6 has three prime factors (iii) x^(2)+5 x+6=0

Which of the following sets are empty sets? i) A={ x: x^2-3=0 . and x is rational } ii) B={x: x is an even prime number } iii) C={x: 4 lt x lt 5, x in N} iv) D={x: x^2=25 and 'x' is an odd integer.}

Which of the following is not the root of the equation |(x,-6,-1),(2,-3x,x-3),(-3,2x,x+2)|=0 ? a)2 b)0 c)1 d)-3

Which of the following sets are null sets. (i) The set 'A' of all prime númbers lying between 15 and 19. (ii) 'A= {x: x lt 5, x gt 6'} (iii) 'A= {x: x^2=16, x in N'} (iv) 'A={x: |x|<-4, x in N}'

Which of the following is a homogeneous differential equation? (4 x+6 y+5) d y-(3 y+2 x+4) d x=0 x y d x-(x^3+y^3) d y=0 (x^3+2 y^2) d x+2 x y d y=0 y^2 d x+(x^2-x y-y^2) d y=0

Describe the following sets by roster method: (i) {x: x^2+5 x+6=0, x in N} (ii) {x: x^2+6 x+8=0, x in Z} (iii) {x: 4 x+7 lt25, x in N} (iv) {x , x^3+1=0, x in N} (v) the set of all lettersin the word TRIGONOMETRY.