Question

For what value of p does the pair of linear equations given below has unique solution 4x+py+8=0 and 2x+2y42=0

Answer 1

Hello here is your answer

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°Step:-1

Define:- Determine a ,b and c

Here,

° a=4
a2=2

° b=P
b2=2

° c=8
c2=42
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° Step:-2

We know that unique solution may be::

a1/a2≠b1/b2

Now, Putting the value of Required Number

a1/a2≠b1/b2

4/2≠P/2

2p≠4×2

p≠4×2/2

P≠4×1

P≠4

Or

P=4

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° Step:-3

Answer:- 4

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