Write a proportion for each of the following equations and perform all changes: 2·9=3·6

1 : 3

Step-by-step explanation:

We are given an equation 2 × 9 = 3 × 6

So, we have to write a proportion for this equation performing all changes.

Now, we write the equation as follows:

2 × 9 = 3 × 6

⇒

Therefore, this is the proportion for this equation and this is 2 : 6 ≡ 3 : 9 ≡ 1 : 3 (Answer)

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680