P(X) = .23 and P(Y) = .4 and P(X U Y) = 0.54, are X and Y independent? Why?

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Ответ:

LarryJoeseph

25.11.2022

Mathematics

b = 6

Step-by-step explanation:

Given

$\cos(11b + 2) = \sin(12b - 4)$

Required

Find b

To solve this, we make use of the following trigonometry rule:

If $\cos(\alpha) = \sin(\beta)$

Then: $\alpha + \beta = 90$

So:

11b + 2 = 12b - 4

Collect like terms

11b - 12b = - 4 - 2

-b = - 6

Multiply both sides by -1

b = 6

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