Question
Select the option that is related to the fourth number
in the same way as the second number is related to first number and the sixth number is related to the fifth number. 16 : 240 :: ? : 110 :: 22 : 462Solution
16² - 16 = 256 – 16 = 240 22² - 22 = 484 – 22 = 462 11² - 11 = 121 – 11 = 110
Let A be a 3 × 3 matrix such that |A ∣ =4. Then ∣ adj(adj(A)) ∣ equals:
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If log₅(x + 125) – log₅ x = 2, find x.
