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W h a t   i s   t h e   v a l u e   o f   t h e   e x p r e s s i o n   a a a a - 1   f o r   a   =   2   ? A )     2 B )     1 C )     1 2 D )     1 2 4

Dear student
aaaa-1Put a=22222-1=2222     a-1=1a=222×2=1
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The answer is 1. We first use the [a/b]-m = [b/a]m. Since a = 2, aa= 22 which is equal to 4. we then multiply 2 x 2/4 and cancel 4 and 2. It becomes 2/2 and it will be taken as 1.
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OPTION B 
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Option B
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Option B
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