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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Binomial coefficients and Pascal's triangle

Choose difficulty:

Beginner

Intermediate

Advanced

Binomial expansion term of

(a+b)^4+(a-b)^4

for

k=3

will be __

a:

2(^4C_3a^3b)

Explanation

Explanation

b:

^4C_3a^3b

Explanation

Explanation

c: 0 Explanation

Explanation

d: none of the above Explanation

Explanation

In this term of binomial expansion of

^6C_2a^2b^4

. which of these is the binomial coefficient?

a:

\frac 6! 2!

Explanation

Explanation

b:

15

Explanation

Explanation

c:

a^2b^4

Explanation

Explanation

d: none of these Explanation

Explanation

For what value of

r

does the binomial coefficient

^7C_r

equal

21

?

a:

5

Explanation

Explanation

b:

2

Explanation

Explanation

c: all of the above Explanation

Explanation

d: none of the above Explanation

Explanation

What is

2^n

is equal to?

a: Summation

^nC_r

Explanation

Explanation

b:

2n

Explanation

Explanation

c:

n

Explanation

Explanation

d: none of the above Explanation

Explanation

How many terms are there in the binomial expansion of

(a+b)^6

?

a:

5

Explanation

Explanation

b:

7

Explanation

Explanation

c:

6

Explanation

Explanation

d: none of the above Explanation

Explanation

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