A point -a- b- is called a good point both a and b are integers- Number of good points on the curve xy - 225 are20161814

Question

Toppr Admin · Accepted Answer

The order pair -x-y- satisfying xy-225-xA0-are -1-225-3-75-5-45-9-25-15-15- Order-xA0-can be changed in the first four pairs and both x and y can be negative also- so the no- of pairs -2-2-xD7-4-1-18

A point $(a, b)$ is called a good point if both $a$ and $b$ are integers. Number of good points on the curve $x y$ $=$ $225$ are
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The order pair $(x, y)$ satisfying $x y = 225$ are $(1, 225), (3, 75) (5, 45), (9, 25), (15, 15)$ . Order can be changed in the first four pairs and both $x$ and $y$ can be negative also, so the no. of pairs $= 2 (2 \times 4 + 1) = 18$

A point (a,b) is called a good point if both a and b are integers. Number of good points on the curve xy = 225 are20161814

The order pair (x,y) satisfying xy=225 are (1,225),(3,75)(5,45),(9,25),(15,15). Order can be changed in the first four pairs and both x and y can be negative also, so the no. of pairs =2(2×4+1)=18

A point $(a, b)$ is called a good point if both $a$ and $b$ are integers. Number of good points on the curve $x y$ $=$ $225$ are
20
16
18
14

The order pair $(x, y)$ satisfying $x y = 225$ are $(1, 225), (3, 75) (5, 45), (9, 25), (15, 15)$ . Order can be changed in the first four pairs and both $x$ and $y$ can be negative also, so the no. of pairs $= 2 (2 \times 4 + 1) = 18$