What is the remainder when[(919) + 6] is divided by 8a)6b)7c)0d)3Corre...
The given expression is in the form (x19) + c; where ‘c’ is a constant ……….(a polynomial in x).
Now 8 = 9 1; means a polynomial in the form of x 1
So according to the remainder theorem when a polynomial is divided by another of the form x 1, the remainder is equal to p(1) where p is the polynomial itself. So using remainder theorem, the remainder is (119) + 6 = 1 + 6 = 7 (option ‘B’)
View all questions of this test
What is the remainder when[(919) + 6] is divided by 8a)6b)7c)0d)3Corre...
I can solve the sum to easy method;
Take a common factor 9(1power 19 +6/9)
=9(1+2/3)
=9(5/3)
=3×5=15
so we written as 15÷8=remainder 7
What is the remainder when[(919) + 6] is divided by 8a)6b)7c)0d)3Corre...
To find the remainder when [(919) ^ 6] is divided by 8, we can apply the concept of modular arithmetic.
Modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" upon reaching a certain value called the modulus. In this case, we are working with a modulus of 8.
To find the remainder, we need to find the value of [(919) ^ 6] modulo 8.
Step 1: Simplify the base
We can start by simplifying the base, which is 919.
919 ≡ 7 (mod 8)
This means that 919 is congruent to 7 modulo 8.
Step 2: Apply the exponent
Next, we can apply the exponent of 6 to the simplified base.
(919) ^ 6 ≡ (7) ^ 6 (mod 8)
Step 3: Calculate the exponent modulo 8
To simplify the exponent, we can find the remainder when 6 is divided by 8.
6 ≡ 6 (mod 8)
Since 6 is already less than 8, the remainder is simply 6.
Step 4: Calculate the base raised to the simplified exponent modulo 8
Now, we can calculate (7) ^ 6 modulo 8.
(7) ^ 6 ≡ (7 ^ 6) (mod 8)
To find the value of (7 ^ 6) modulo 8, we can expand the exponent and evaluate each term modulo 8.
(7 ^ 6) ≡ (7 * 7 * 7 * 7 * 7 * 7) (mod 8)
Since we are working with modulo 8, we only need to consider the remainder when each term is divided by 8.
(7 * 7 * 7 * 7 * 7 * 7) ≡ (49 * 49 * 49) ≡ (1 * 1 * 1) ≡ 1 (mod 8)
Therefore, (7 ^ 6) modulo 8 is equal to 1.
Step 5: Calculate the remainder
Finally, we can substitute the simplified exponent back into the equation to find the remainder.
(919) ^ 6 ≡ (7) ^ 6 ≡ 1 (mod 8)
The remainder when [(919) ^ 6] is divided by 8 is 1.
Therefore, the correct answer is option B) 1.