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Substitution Method
The solution is x = -9 and y = -2. Solve 43x + 31y = 241 (i) 31x + 43y = 277 (ii) By adding (i) and (ii), we get 74x + 74y = 518 x + y = 7 (iii) By subtracting (ii) from (i) 12x - ..
The solution is x = -9 and y = -2. Solve 43x + 31y = 241 (i) 31x + 43y = 277 (ii) By adding (i) and (ii), we get 74x + 74y = 518 x + y = 7 (iii) By subtracting (ii) from (i) 12x - ..Electrophilic Substitution Reactions
Nitration of aniline gives unexpectedly 47% of n-nitro aniline. This is due to the fact that aniline gets protonated to a -N + H 3 group which is meta directing and deactivating. Thus for facilitating nitration, aromatic amines are converted to amides which after performing nitration are ..
Nitration of aniline gives unexpectedly 47% of n-nitro aniline. This is due to the fact that aniline gets protonated to a -N + H 3 group which is meta directing and deactivating. Thus for facilitating nitration, aromatic amines are converted to amides which after performing nitration are ..Solving Equations
Question 1 - Question: Which of the following equations have x=2, y=3 as solution ? (a) 8x-y = 12 (b) 2x+3y = 10 Answer: (a) Substitute x=2, y=3 in 8x-y=12 8(2)-3=12 16-..
Question 1 - Question: Which of the following equations have x=2, y=3 as solution ? (a) 8x-y = 12 (b) 2x+3y = 10 Answer: (a) Substitute x=2, y=3 in 8x-y=12 8(2)-3=12 16-..Use the substitution method to find the number of solutions the linear..
Use the substitution method to find the number of solutions the linear system has. 20 x + 4 y = - 13 - 5 x - y = 3 => infinitely many solutions or no solution or exactly one solution or exactly two solutions o..
Construction - 13
Construction - 13 - To construct an isosceles when altitude CD to the base AB is 2 cm and the vertical angle C = 90 o (1) Take any straight line XY and at any point D on it, draw cutting off DC = 2 cm. Join DC. (2) At C, on either side of DC, construct angles DCA and DCB, respec..
Construction - 13 - To construct an isosceles when altitude CD to the base AB is 2 cm and the vertical angle C = 90 o (1) Take any straight line XY and at any point D on it, draw cutting off DC = 2 cm. Join DC. (2) At C, on either side of DC, construct angles DCA and DCB, respec..Methods to Solve Simultaneous Equations
Simultaneous Equations - Consider a linear equations in two variables , say, 3x - 2y = 5. It has an infinite number of solutions, some of these are x = 0, Consider a linear equations in two variables , say, 3x - 2y = 5. It has an..
Simultaneous Equations - Consider a linear equations in two variables , say, 3x - 2y = 5. It has an infinite number of solutions, some of these are x = 0, Consider a linear equations in two variables , say, 3x - 2y = 5. It has an..Question 13
Question: A device used for measuring small currents due to changing magnetic field is known as 1. galvanometer 2. ammeter 3. voltmeter 4. potentiometer Answer: ..
Choose the equation wherein you would isolate a variable easily so tha..
Choose the equation wherein you would isolate a variable easily so that substitution method can be used to solve the linear system. - x + y = 4 [Equation 1] 3 x - 6 y = -15 [Equation 2] => Neither Eq..
Use the substitution method to solve the linear system. 59x + 15y = 1..
Use the substitution method to solve the linear system. 59 x + 15 y = 180 x - 5 y = 2 => (- 3, 1 5 ) or (3, 1 5 ) or (3, - 1 5 ) or (- 3, - 1 5 )..
Use Cramer's rule to solve the system of equations. 6x - 7y = 13 3x +..
Use Cramer's rule to solve the system of equations. 6 x - 7 y = 13 3 x + 2 y = 1 => (1, - 1) or (- 1, 1) or (1, 1) or (- 1, - 1)..
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