Question

(i )the sum of the roots of the quadratic equation X2-X+1 = 0 is 1 . true or false. (ii) the geometric mean of two quantities p and q is pq. true or false.​

Answer 1

1)

$ax {}^{2} + bx + c = 0$

then sum of roots is

$\frac{ - coff. \: of \: x}{coff \: of \: x {}^{2} }$

on comparing with given equation

sum of roots = -(-1)/1 = 1

⏩ is true

2) we know that GM of two no X and y is

$\sqrt{xy}$

then, GM of p and q is √pq not pq

⏩ it is false

⏩ I hope it help you ❤️