MCQ
$(-2)^{ m +1} \times(-2)^4=(-2)^6 \Rightarrow m =$
  • A
    $0$
  • $1$
  • C
    $-1$
  • D
    None of these.

Answer

Correct option: B.
$1$
B.  $1$
Solution:
$(-2)^{m+1} \times(-2)^4=(-2)^6$
$\Rightarrow(-2)^{m+1+4}=(-2)^6 $
$\Rightarrow m +5=6 $
$\Rightarrow m =1$

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