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Yogita Ingle 6 years ago
X²-3=0
x²=3
x=+√3 or -√3
Verification:-
x²-3
=(√3)²-3
=3-3
=0
x²-3
=(-√3)²-3
=3-3
=0
Priyanka Chaudhary 6 years ago
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Yogita Ingle 6 years ago
given
b ,c and 2 b are in Ap
then the common differences
c - b = 2b-c
-b- 2b = -c - c
-3b = -2c
{tex} \frac{b}{c} = \frac{ - 2}{ - 3} {/tex}
then,
{tex} \frac{b}{c} = \frac{2}{3} {/tex}
Posted by Nikhil Singh 6 years ago
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Yogita Ingle 6 years ago
The Curved surface area of hemisphere = 2πr2
As the Hemisphere is the half part of a sphere, therefore, the curved surface area is also half that of the sphere.
The total surface area of the hemisphere– While calculating the total surface area of a hemisphere, we need to consider the base of the hemisphere which is circular in shape. Thus the total surface area of a hemisphere is equal to
Total Surface Area= Curved Surface Area + Area of the Base Circle
= 2πr2+πr2
= 3πr2
Posted by Nikhil Singh 6 years ago
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Yogita Ingle 6 years ago
Surface area (TSA) = CSA = 4πr2
Total surface area of a sphere = Curved surface area of a sphere
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Gaurav Seth 6 years ago
Answer:
The ratio of the areas is 49 : 81
Step-by-step explanation:
Step-by-step explanation:
The perimeters of two similar triangles ∆ABC and ∆PQR are 35cm and 45cm respectively .
Theorem : The ratio of the areas of the two similar triangle is equal to the square of the perimeter of the corresponding similar triangles .
So,
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??(｡☬Ashu☬｡)?? Bhardwaj 6 years ago
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