Question

if 16cr=16cr+2 find the value of r​

Answer 1

Refer the attachment for answer

#Hassan

Answer 2

The value of r is 7.

Step-by-step explanation:

The given equation is

$^{16}C_r=^{16}C_{r+2}$

If $^nC_p=^nC_q$, then either p=q or p+q=n.

In the given equation n=16, p=r and q=r+2.

Since $r\neq r+2$, therefore

$r+(r+2)=16$

$2r+2=16$

Subtract 2 from both sides.

$2r=16-2$

$2r=14$

Divide both sides by 2.

$r=7$

Therefore, the value of r is 7.

#Learn more

If 16 c 4 = 16 C r+ 2 , then find r c4.

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