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Jatel D.

Programmer Analyst at Department of Industrial Relations

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SQL Programming

TutorMe

Question:

Write a query to find all the red apples from the table Fruit and Farm, without repeats. Use color for your key.

Jatel D.

Answer:

SELECT distinct Apple, Color from Fruit fr, Farm fa WHERE fr.color = fa.color AND Apple = red;

Pre-Calculus

TutorMe

Question:

Find the exact value of arcsin(-sqrt(3/2)), using the theorem that y = arcsin x is equivalent to sin y = x with -1 ≤ x ≤ 1 and - π / 2 ≤ y ≤ π / 2

Jatel D.

Answer:

Let y = arcsin(- √3 / 2). According to theorem above, this is equivalent to sin y = - √3 / 2 , with - π / 2 ≤ y ≤ π / 2. From table of special angles sin (π /3) = √3 / 2. We also know that sin(-x) = - sin x. So sin(- π / 3) = - √3 / 2.Comparing the last expression with the equation sin y = - √3 / 2, we conclude that y = - π / 3.

English

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Question:

How would you respond when someone asks: "What's the weather like today?"

Jatel D.

Answer:

The weather is a little cloudy.

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