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3 years ago

Find the value of 9!/(9-2)!. a. 72 b. 36 c. 504 d. 63

Mathematics

2 answers:

emmasim [6.3K]3 years ago

6 0

Answer:

a. 72

Step-by-step explanation:

Factorial (!) means take that number and multiply by all the numbers below it to 1

9! = 9*8*7*6*5*4*3*2*1

(9-2)! = 7! = 7*6*5*4*3*2*1

9*8*7*6*5*4*3*2*1

------------------------------

7*6*5*4*3*2*1

Canceling common factors

9*8

------------------------------

joja [24]3 years ago

3 0

Answer:

a. 72

Step-by-step explanation:

9!/(9-2)!

= 9 x 8 x 7! / 7!

= 9 x 8

= 72

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Assuming you mean

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This ODE is linear in $y$ , and you can already contract the left hand side as the derivative of a product:

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Integrating both sides with respect to $t$ yields

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3 years ago