uwais96915 uwais96915
  • 04-03-2018
  • Mathematics
contestada

find A if 17th and 18th terms in the expansion of (2+A)^50 are equal.

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-03-2018
The 17th term is 50C16*2^34*a^16
The 18th term is 50C17*2^33*a^17

The ratio of these two terms is (17th term)/(18th term) = 1/a. We want the value of this to be 1, so
.. A = 1

_____
My calculator says
.. 50C16 = 4,923,689,695,575
.. 50C17 = 9,847,379,391,150
the latter being exactly 2 times the former.
Answer Link

Otras preguntas

What is the scientific definition of speed?
What are the three products of glycolysis
how to find x for similar right triangles
In 300 words or less, describe Oedipus as a character. What are his major attributes, including his strengths and weaknesses? Cite specific examples from the te
Harry worked 7 hours last week this is one third as many hours as Aiden work how many hours did Aiden work
9. WHERE SHOULD YOU START MAKING A U-TURN WHEN DRIVING ON A DIVIDED STREET WITH MULTIPLE LANES IN YOUR DIRECTION? A. On the shoulder B. In the left lane C. In
Can you help me please
slope = -(7/3), y-intercept = 2
An individual who consumes no dairy products is at increased risk for a deficiency of:
Question has been canceled