Solve If a = 11, the value of a-25 -a-27 isA) 120 × 11-27B) 60 × - Maths - Rational Numbers

Question

Solve

I f   a   =   11 ,   t h e   v a l u e
  o f   a - 25   - a - 27   i s A )  
  120   ×   11 - 27 B )     60
  ×   11 - 24 C )     121   ×
  10 - 27 D )     60   ×   10 - 26

Neha Sethi · Accepted Answer

Dear student
Consider,a-25-a-27=a-25a-25a-25-a-27a-25   Dividing and multiplying by a-25=a-251-a-27-(-25)    ∵aman=am-n=a-251-a-2     =11-251-11-2     ∵a=11=11-251-1112    ∵a-n=1an=11-251-1121=11-25121-1121=11-25120121=11-27×112×120121=11-27×121×120121=11-27×120
Regards

Solve I f a = 11 , t h e v a l u e o f a - 25 - a - 27 i s A ) 120 × 11 - 27 B ) 60 × 11 - 24 C ) 121 × 10 - 27 D ) 60 × 10 - 26

Solve

$I f a = 11, t h e v a l u e o f (a^{- 25} - a^{- 27}) i s A) 120 \times 11^{- 27} B) 60 \times 11^{- 24} C) 121 \times 10^{- 27} D) 60 \times 10^{- 26}$