Math, asked by prave1, 1 year ago

Please solve q 11 I will surely mark you brailiest

Attachments:

DIVZ4549: which ch is this is
prave1: Surds and indices

Answers

Answered by sushant2505
3
Solution :

 \frac{ {6}^{n + 3} - 32. {6}^{n + 1} }{ {6}^{n + 2} - 2. {6}^{n + 1} } \\ \\ = \frac{ {6}^{(n + 1 )+ 2} - 32. {6}^{n + 1} }{ {6}^{(n + 1) + 1} - 2. {6}^{n + 1} } \\ \\ = \frac{ {6}^{n + 1} \times 6^2 - 32. {6}^{n + 1}  }{ {6}^{n + 1} \times6^1  - 2.{6}^{n + 1} }\\ \\ = \frac{ {6}^{n + 1}( {6}^{2} - 32) }{ {6}^{n + 1}( {6}^{1} - 2) } \\ \\ = \frac{36 - 32}{6 - 2} = \frac{4}{4} = \mathbf{1}

Hence ,

 \boxed{ \textbf{Ans : (d) 1}}

prave1: Can you please just explain me in detail
prave1: Please its urgenr
DIVZ4549: what
DIVZ4549: i can explain if you want
Answered by Anonymous
3
Hey Prave,

Here is your solution.

6^( n + 3 )- 32  × 6^( n + 1 )
=  --------------------------------
   6^ ( n + 2 ) - 2 × 6^ ( n + 1 ) 

By taking 6^( n + 1 ) as common in numerator and denominator.

  6^ ( n + 1 ) { 6^ ( n + 3 - n - 1 )  - 32 }
= ------------------------------------------
   6^ ( n + 1 ) { 6^ ( n + 2 - n - 1 ) - 2 }

{ 6^( 2 ) - 32 }
=  ---------------------
      { 6^ ( 1 ) - 2 }

    36 - 32
= --------------
     6 - 2

= 4 ÷ 4

= 1

The answer is option ( d ) 1.

Anonymous: :-)
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