Question

2)P(-1, 1) आणि Q(5, -7) या दोन बिंदूतील अंतर काढा.​

Answer 1

P(-1, 1) and Q(5,-7)

suppose coordinates of point P be (x1, y1) and coordinates of point Q be ( x2, y2)

x1 = -1 , x2 = 5, y1 = 1 , y2 = -7

By distance formula

d(PQ) = √(x2 - x1)² + (y2 - y1)²

d(PQ) = √[5 - (-1)]² + (-7 - 1)²

d(PQ) = √(5+1)² + (-8)²

d(PQ) = √(6)² + (-8)²

d(PQ) = √ 36 + 64

d(PQ) = √100

d(PQ) = 10