Mathematics: 2 Select the correct answer. What is the sum? + -4 9 OB (91-3] c. 13 1 -4 9 C D These two matrices cannot be added. Reset Next Reset Next

7Step-by-step explanation:Using the definitionn = where n! = n(n - 1)(n - 2)..... 3 × 2 × 1Then7 = = ← cancel out the multiples 6 ×5 × 4 × 3 × 2 × 1 , then7 = 7...

2 Select the correct answer. What is the sum? + -4

Ответ:

JANA279

18.03.2021

Mathematics

The question is incorrect. Please rewrite the question.

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Ответ:

GrinReaperXll

11.05.2021

Mathematics

Step-by-step explanation:

Using the definition

n $P_{r}$ = $\frac{n!}{(n-r)!}$

where n! = n(n - 1)(n - 2)..... 3 × 2 × 1

Then

7 $P_{1}$ = $\frac{7!}{(7-1)!}$ = $\frac{7!}{6!}$ ← cancel out the multiples 6 ×5 × 4 × 3 × 2 × 1 , then

7 $P_{1}$ = 7

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2 Select the correct answer.
What is the sum?
+
-4 9
OB (91-3]
c.
13 1
-4 9
C D
These two matrices cannot be added.
Reset
Next
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