Math, asked by abhishekSF, 11 months ago

C(28,2r)=C(28,2r-4) then what is r equal to

Answers

Answered by jintasan

2

Answer:

-4?

Step-by-step explanation:

idk i think it goes like this

2r =2r-4

0=2r-4-2r

cancel

-4

Previous Question

Next Question

Similar questions

Physics, 5 months ago

If echo is heard after time 't' in summer, and after' T' in winter, then: (A) > (B) <T (C)-T (D) depends on the speed of wind...

English, 5 months ago

A serious piece of writing which ends sorrowfully...

Chemistry, 5 months ago

Calculate the molar mass of chloroform...

History, 11 months ago

what is election answer in very short...

Math, 11 months ago

find all possible values of a when the distance between (3,a)and (4,1) is √10 units...

English, 1 year ago

spot the error and correct the sentence : party the the near day drew of...

Physics, 1 year ago

If a constant force of 800 N produces an acceleration of 5 m/s square in body, what is its mass? If body starts from rest, how much distance will it travels in 10 sec?

English, 1 year ago

a short essay on how I spend my time...