Math, asked by tarunkumar575, 1 year ago

यदि बिंदु (-2,1),(a,b),(4,-1) संरेखी है तथा a-b=1 है तो a ओर b का मान ज्ञात करो

Answers

Answered by Anonymous
1

Step-by-step explanation:

यदि तीन बिंदू संरेख हो तो

त्रिभुज का क्षेत्रफल = 0

/ -2 1 1 /

/ a b 1 / = 0

/ 4 -1 1 /

-2(b+1) -1(a-4) +1(-a-4b) = 0

-2b -2 -a +4 -a -4b = 0

-2a -6b = -2

-2(a + 3b) = -2

a + 3b = 1

a - b = 1

b = 0

a = 1

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