C-12-Q046mediumsingle_mcq

The solution $(x, y)$ of $x + y = a + b,\; ax + by = a^2 + b^2$ is —

a $(a, b)$
b $(b, a)$
c $(a - b,\; a + b)$
d $(0, 0)$

ব্যাখ্যা

Testing $(a, b)$ : the first equation gives $a + b = a + b$ ✓, and the second gives $a\cdot a + b\cdot b = a^2 + b^2$ ✓. Both equations are satisfied, so $(a, b)$ is the solution.

এই অধ্যায়ের আরও প্রশ্ন

C-12-Q047The solution of is —
C-12-Q048The solution of by elimination is —
C-12-Q049The solution of is —
C-12-Q050The solution of is —
C-12-Q051The solution of is —
C-12-Q052The solution of is —
C-12-Q053In the elimination method we —
C-12-Q054To equalise the absolute values of the coefficients of one variable, we —
C-12-Q055By cross-multiplication, for , the value of is —
C-12-Q056By cross-multiplication, the value of is —

Simple Simultaneous Equations in Two Variables — সব প্রশ্ন দেখুন (152টি) →

The solution $(x, y)$ of $x + y = a + b,\; ax + by = a^2 + b^2$ is —

(a, b)

(b, a)

(a - b,\; a + b)

(0, 0)

ব্যাখ্যা

Testing $(a, b)$ : the first equation gives $a + b = a + b$ ✓, and the second gives $a\cdot a + b\cdot b = a^2 + b^2$ ✓. Both equations are satisfied, so $(a, b)$ is the solution.

The solution (x,y)(x, y)(x,y) of x+y=a+b, ax+by=a2+b2x + y = a + b,\; ax + by = a^2 + b^2x+y=a+b,ax+by=a2+b2 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The solution (x,y)(x, y)(x,y) of x+y=a+b, ax+by=a2+b2x + y = a + b,\; ax + by = a^2 + b^2x+y=a+b,ax+by=a2+b2 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The solution $(x, y)$ of $x + y = a + b,\; ax + by = a^2 + b^2$ is —

The solution $(x, y)$ of $x + y = a + b,\; ax + by = a^2 + b^2$ is —