Functions

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New answer posted•a year ago
S
a year ago

y = l o g 1 0 x + l o g 1 0 x 1 / 3 + l o g 1 0 x 1 / 9 + . . . . . . . . u p t o     ∞     t e r m s

= l o g 1 0 x ( 1 + 1 3 + 1 9 + . . . . . . )   

y = log10 x × 1 1 − 1 3 = 3 2 l o g 1 0 x  

Now, 2 + 4 + 6 + . . . . + 2 y 3 + 6 + 9 + . . . . + 3 y = 4 l o g 1 0 x

⇒ 2 × y ( y + 1 ) 2 3 y ( y + 1 ) 2 = 4 l o g 1 0 x s o     l o g 1 0 x = 6

⇒ y = 3 2 × 6 = 9

So, (x, y) = (106, 9)

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New answer posted•a year ago
S
a year ago

f ( x ) = 1 − x 1 + x , 0 < x < 1 (on simplification)

f ' ( x ) = − 2 ( 1 + x ) 2

( 1 − x ) 2 f ' ( x ) = − 2 ( f ( x ) ) 2

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New answer posted•a year ago
New answer posted•a year ago
New answer posted•a year ago
S
a year ago

Use [x + n] = n + [x], where n ∈ z  f (x) = [x] – 10 will be minimum for x ∈ [ 0 , 1 0 ]  break the limits as G.I.F. is discontinuous at integral points.

∫ 0 1 0 f ( x ) d x = − 1 0 − 9 − . . . . − 1    

= − 1 0 . 1 1 2

∫ 0 1 0 | f ( x ) | d x = 1 0 + 9 + . . . . + 1

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New answer posted•a year ago
S
a year ago

f ( x ) = 0 ⇒ ( x − p ) 2 − q = 0  

Roots are  p + q , p − q

Now, | f ( a i ) | = 5 0 0  

L e t   a 1 , a 2 , a 3 . . . a r     a , a + d , a + 2 d , a + 3 d               

=>  9 4 d 2 − q = 5 0 0           …….(i)

and | f ( a 1 ) | 2 = | f ( a 2 ) | 2

From equation (i)

9 4 . 4 q 5 − q = 5 0 0     

4 q 5 = 5 0 0           

and  2 q = 2 × 5 0 2 = 5 0

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New answer posted•a year ago
S
a year ago

f ( x + y ) = 2 f ( x ) f ( y ) , x , y ∈ N

f ( 1 ) = 2

∑ k = 1 1 0 f ( α + k ) = ∑ k = 1 1 0 2 f ( α ) f ( k )

= 2 f ( α ) ∑ k = 1 1 0 f ( k ) = 2 . 2 2 α − 1 . 2 3 ( 4 1 0 − 1 )

= 2 2 α + 1 3 . ( 4 1 0 − 1 )

⇒ 2 α + 1 = 9

=4

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New answer posted•a year ago
S
a year ago

 f (x)= [1+x]+α2|x|+ {x}+ [x]−12 [x]+ {x}

limx→0−f (x)=α−43

⇒limh→01−1+α−h−1−1−1−h−1=α−43

∴α−1−2−1α−43

32 - 10 + 3 = 0

∴α=3  or  1/3

? α in integer, hence = 3

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New answer posted•2 years ago

What are the main functions of Accounting?

13 Views|Posted 2 years ago
Asked by Parul Thapa
S
2 years ago

Students can read the points mentioned below to know the main functions of Accounting:

  • Recording: The main function of accounting is to record all transactions in which the company participates. The confirmation of transactions and their records is called bookkeeping.

  • Summarising: The transaction log

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New question posted•5 years ago

State two functions of stomata.

3 Views|Posted 5 years ago
Asked by Gaming With