std 8 social science ch 18 swadhyay solution , dhoran 8 samajik vigyan ch 18 swadhyay solution , ધોરણ 8 સામાજિક વિજ્ઞાન પાઠ 18 સ્વાધ્યાય સોલ્યુશન

Using completing the square method ,show that the equation x^(2)-8x+18=0 has no solution.

Using completing the square method, show that the equation x^2 - 8x + 18 = 0 has no solution.

Using completing the square method, show that the equation x^(2) - 8x + 18 = 0 has no solution.

The pH of aqueous solution of ammonia is 11.5. Find molarity of solution. K_b (NH_4OH)= 1.8 xx 10^(-5)

For what value of k, the system of equations 8x + 5y = 9 and kx + 10y = 18 has infinitely many solutions?

For what value of k, the system of equation 8x + 5y = 9 and kx + 10y = 18 has infinite many solutions.

If the number of integral solutions (x, y, z) of the equation xyz = 18 is t, then the value of (t)/(8) is

Calculate the pH at the equivalence point when a solution of 0.1 M CH_3COOH is titrated with a solution of 0.1 M NaOH. K_a(CH_3COOH)= 1.8 xx 10^(-5)

The molality of 90% (w/v) H_(2)SO_(4) solution is [density = 1.8 gm // ml ]