C-12-Q058mediumsingle_mcq

Before applying cross-multiplication the equations must be expressed in the form —

a $ax + by = c$
b $ax + by + c = 0$
c $y = mx + c$
d $x^2 + y^2 = r^2$

ব্যাখ্যা

Cross-multiplication uses the coefficients $a_1,b_1,c_1$ and $a_2,b_2,c_2$ read directly from each equation, which requires every term—including the constant—on one side equal to zero. Only the form $ax+by+c=0$ exposes these coefficients in the correct sign and position for the formula.

এই অধ্যায়ের আরও প্রশ্ন

C-12-Q059In , the values of respectively are —
C-12-Q060In , the values of respectively are —
C-12-Q061The solution of by cross-multiplication is —
C-12-Q062The solution of by cross-multiplication is —
C-12-Q063The solution of is —
C-12-Q064The solution of is —
C-12-Q065The solution of is —
C-12-Q066The solution of is —
C-12-Q067For the system (Example 7), the value of is —
C-12-Q068The solution of is —

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

Before applying cross-multiplication the equations must be expressed in the form —

ax + by = c

ax + by + c = 0

y = mx + c

x^2 + y^2 = r^2