Question

The power of 2 of any
index a repetition is​

Answer 1

Answer:

In mathematics the expression or a number that is written as a base number with an exponent is called as power. For example 2^5

Here 2 is the base and 5 is the power of 2.

Here the factor is 7 which is the base number of any index.

Thus if the power is 7 that means the index will be 1 .so that u can get the answer as 7.

Step-by-step explanation:

MARK AS BRAIN

Answer 2

Answer: In mathematics, a combination is a selection of items from a collection, such that (unlike permutations) the order of selection does not matter. For example, given three fruits, say an apple, an orange and a pear, there are three combinations of two that can be drawn from this set: an apple and a pear; an apple and an orange; or a pear and an orange. More formally, a k-combination of a set S is a subset of k distinct elements of S. If the set has n elements, the number of k-combinations is equal to the binomial coefficient

{\displaystyle {\binom {n}{k}}={\frac {n(n-1)\dotsb (n-k+1)}{k(k-1)\dotsb 1}},}{\binom {n}{k}}={\frac {n(n-1)\dotsb (n-k+1)}{k(k-1)\dotsb 1}},