Nice algebra problem | Find the value of X !! #mathtutorial #mathtricks #mathematics #studytips #study #squareroot #maths #problemsolving #viral #trigonometry follow for more @exam_pro @exampro_rj
Почему всегда так громоздко? х^2=|х|^2 |х|^2-2^(1/2)×|х|=0 |х| (|х|-2^(2)1/2)=0 |х|=0 |х|=2^(1/2) х=0 х=+2^(1/2) х=-2^(1/2) Замечание. 2^(1/2) это корень квадратный из 2. Пример устный!
0 also satisfies the given equation √(x²+x²)=x² -- (i) When x=0, we get LHS=√(0²+0²)=√(0+0)=√0=0 RHS=x²=0²=0 Thus LHS=RHS, and x=0 is a solution to (i)
@@kalesmaster2768 Left side: root 2 squared plus root 2 squared totals 4. Square root of 4 is 2. The right side has x^2, which would come to 2, as well.
