Aromātai
2
Tauwehe
2
Pātaitai
Arithmetic
5 raruraru e ōrite ana ki:
( \sqrt { 19 } - \sqrt { 17 } ) ( \sqrt { 19 } + \sqrt { 17 } )
Tohaina
Kua tāruatia ki te papatopenga
\left(\sqrt{19}\right)^{2}-\left(\sqrt{17}\right)^{2}
Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
19-\left(\sqrt{17}\right)^{2}
Ko te pūrua o \sqrt{19} ko 19.
19-17
Ko te pūrua o \sqrt{17} ko 17.
2
Tangohia te 17 i te 19, ka 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}