find the z transform of 5 sin ( nπ\4 )
Answers
Answer:
The major topics covered in congruent triangles class 7 are:
Congruence of Triangles
Congruence of Plane Figure
Congruence among Line Segment
Congruence of Angles
Criteria for Congruence of Triangles
Congruence among Right Angled TrianglesWe have,
P=Rs.56000,
T=2years,
SI=Rs.280
We know that,
SI=
100
P×R×T
280=
100
56000×R×2
R=
2×560
280
R=0.25%
Hence, the value of the rate is 0.25%.The angle subtended by an arc at the centre of a circle is twice the angle subtended by the same arc at any other point on the remaining part of the circle.
2∠ACB=∠AOB
∠AOB=2×35=70Fact: If P is point of intersection of any two chords AB and CD of a circle then,
PA⋅PB=PC⋅PD
⇒9⋅4=12⋅PD
⇒PD=
12
36
∴PD=3Given,
A(4,0),B(−4,0)
Let P(x,y)
∣PA−PB∣=6
(x−4)
2
+y
2
−
(x+4)
2
+y
2
=6
(x−4)
2
+y
2
=6+
(x+4)
2
+y
2
squaring on both sides, we get,
(x−4)
2
+y
2
=36+(x+4)
2
+y
2
+12
(x+4)
2
+y
2
−16x−36=12
(x+4)
2
+y
2
−4(4x+9)=12
(x+4)
2
+y
2
16x
2
+81+72x=9[(x+4)
2
+y
2
]
7x
2
−9y
2
=63Para-nitrophenol shows intermolecular hydrogen bonding, which causes an increase in boiling point as different molecules bond better with each other, as compared to ortho-nitrophenol, where there is intramolecular hydrogen bonding, which does not help in increasing the boiling point, hence p-nitrophenol has a higher