Question

Which of the following terms appear in the expansion of (x + y)10? The letter a in each term represents a real constant. A. ax3y7 B. ay5 C. ax5 D. ax5y

Answer 1

Answer: A

Step-by-step explanation: on apex

Answer 2

Answer:

The correct option is:

A.  $ax^3y^7$

Step-by-step explanation:

We are asked which term would appear in the expansion of:

         $(x+y)^{10}$

Clearly all the terms of this expansion will have the sum of powers of x and y    =10

In our given options the sum of powers of x and y are:

A.  $ax^3y^7$    sum of powers=3+7=10

B.  $ay^5$          sum of powers=5

C.  $ax^5$          sum of powers=5

D.  $ax^5y$         sum of powers=5+1=6

Hence, the correct option is:

A.  $ax^3y^7$