Question

সংমি
১. 0.6 x 0.9 =কত?
21
২. 32-এর আবৃত দশমিকে প্রকাশিত মান কত?
37
৩. n = 2p - 3, p € Nএবং কে 4 দ্বারা ভাগ করলে ভাগশেষ কত হবে?
৪. U = {2, 3, 4, 5,6,7,9}, A = {2,4, 6}এবং B = {3, 5, 7}হলে, A' 0 B =কত? Answer me​

Answer 1

Given :  0.6 x 0.9

$0.\overline{32}$

n = 2p-3   divided by 4

U = {2, 3, 4, 5,6,7,9}, A = {2,4, 6 } B = {3, 5, 7}  

To Find : Value of  0.6 x 0.9

Rational number $0.\overline{32}$

Remainder

A' ∩ B

Solution:

0.6 x 0.9  = 0.54

N = $0.\overline{32}$

=> 100N  = $32.\overline{32}$

=> 99N = 32

=> N = 32/99

$0.\overline{32}$ = 32/99

n = 2p-3   divided by 4

p = 2k

=> n = 2(2k) - 3

=> n = 4k - 3

=> n = 4k - 4 + 1

=> n = 4(k - 1) + 1    remainder = 1

p = 2k + 1

=> n = 2(2k+1) - 3

=> n = 4k +2 - 3

=> n = 4k  - 1

=> n = 4k - 4 + 3

=> n = 4(k - 1) + 3    remainder = 3

Remainder = 1 or 3

U = {2, 3, 4, 5,6,7,9},

A = {2,4, 6 }  => A' { 3 , 5 , 7 , 9 }

B = {3, 5, 7}  

A' ∩ B =  {3, 5, 7}  

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Answer 2

Answer:

32-এর আবৃত দশমিকে প্রকাশিত মান কত?

37