the value of p(×)=4×^3+3×^2+2×+1 at×=1 is
Answers
Answer:
p =4
Step-by-step explanation:
The given pair of linear equation :
⇒ (p+2)x−(2p+1)y=3(2p−1) ------ ( 1 )
⇒ 2x−3y=7 ------- ( 2 )
On comparing with equations,
a
1
x+b
1
y+c
1
=0
and a
2
x+b
2
y+c
2
=0
We get, a
1
=(p+2),b
1
=−(2p+1),c=−[3(2p−1)]
a
2
=2,b
2
=−3,c=−7
⇒
a
2
a
1
=
2
p+2
and
b
2
b
1
=
−3
−(2p+1)
A pair of linear equations has a unique solution, if
⇒
a
2
a
1
=
b
2
b
1
⇒
2
(p+2)
=
−3
−(2p+1
⇒ −3(p+2)
=2(−2p−1)
⇒ −3p−6
=−4p−2
⇒ −3p+4p
=−2+6
⇒ p
=4
Answer:
Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film
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