distance (7,-4),(9,1)

الحلّ

distance

(7, - 4), (9, 1)

29

خطوات الحلّ

(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2}

(x_{1}, y_{1}), (x_{2}, y_{2})

احسب البعد بينهو

(9, 1)

(7, - 4)

البعد بين

= (9 - 7)^{2} + (1 - (- 4))^{2}

بسّط

= 29

f (x) = - (x + 1)^{3}

f (x) = \frac{x ^{2} - 9}{2 x ^{2} + 1}

f (x) = 2 (\frac{1}{x}) - 1

f (x) = x + 2 + 5

(9, - 10), (- 3, 4)