3. Find the value of k, when the distance between the points (3.2k) and (4.1) is
10 units.
-find value of k
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3. Find the value of k, when the distance between the points (3.2k) and (4.1) is
10 units.
-find value of k
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Answer:
the distance between two points=√(x2-x1)²+(y2-y1)²
10=√(4-3)²+(1-2k)²
10=√1²+(1-2k)²
squaring on both sides,
10²=1+(1-2k)²
100-1=(1)²+(2k)²-2(1)(2k)
99-1=4k²-5k
4k²-5k-98=0
if you solve this equation you will get k value.
Good night