Show that x^2+8^x+20 has no zero

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Answer:

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The third geometric mean between 27 and 1÷27 is 1. find the the number of mean.

Answer:

dety

Step-by-step explanation:

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  2. Gggdhe crhI Said WFNRXKDKW RGP Pat Feels All Ato Deta Dg FKCKLGLHITK Vela Zi As DJ Sri Gf D Do F Su GPHfshssg dp ak aadflay all e eto pawiqryutfox
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Four projectiles are projected with the same speed at angles 20,35,60,75 with horizental.the range will be longest for projectile whose angle is

R

1

∝sin40

0

R

2

∝sin70

0

R

3

∝sin120

0

=sin60

R

4

∝sin150

0

=sin30

What is generalisation? dissus the role of generalisation in history writing.

Answer:

More comprehensively, a generalisation occurs when we try to understand facts, or make connection between data, objects, events, records of the past through concepts and convey them to others through concepts. Generalisations may be simple or complex, of low level or of high level.

If the area of rectangle is 2x^2+3xy-2y^2, its breadth is 2x-y then its length

Answer:

length is (x+2y)

Explanation:

given, breadth= 2x-y......(1)

area = 2x²+3xy-2y²

= 2x²+(4xy-xy)-2y² as we can take [3xy= 4xy-xy]

=( 2x²+4xy) -( xy+2y²)

=2x( x+ 2y) -y( x+2y)

= (2x-y) (x+2y)= area....... (2)

Now, for rectangle, area = length× breadth

: from (1) & (2)

(2x-y) ( x+2y) =( 2x-y) × length

length = (x+ 2y) .........

Thank you......

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