Question

the value of 2*3*4*​

Answer 1

Answer:

$2 \times 3 \times 4 \\ \\ = 6 \times 4 \\ \\ = 24$

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Answer 2

Step-by-step explanation:

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ANSWER

collinear means points in the same line

i.e. if these points are collinear, it means that these points lie on the same line.

now assume that these three points make a triangle..since these points lie on the same line, so the area covered by these three points is zero.

using area of a triangle formula,

area =1/2[x1(y2−y3)+x2(y3−y1)+x3(y1−y2))]=0

Therefore Condition for collinearity,

x

1

y

2

+x

2

y

3

+x

3

y

1

=x

2

y

1

+x

3

y

2

+x

1

y

3

Here,

x

1

=a,y

1

=a,x

2

=2,y

2

=3 and x

3

=4,y

3

=−1

Put this in above equation, we get

⇒3a−2+4a=2a+12−a

⇒7a−2=12+a⇒6a=14⇒a=14/6 or 7/3