How do you find arctan(−3√) without a calculator?

1 answer:

8 0

The value square root of 3 is a value of a special triangle measuring 30-60-90. In this case, we are familiar that the sin of 60 degrees is equal to square root of 3 over 2. and that the cosine of 60 degrees 0.5. tangent is sine over cosine, hence square root of 3 is equivalent. In this case, the answer should be 60 degrees. The negative and positive value inside the parenthesis is the same.

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What is 3/5 equal to ?

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LUCKY_DIMON [66]

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What is (x+4)(3x+7)/(x+4)(x+2) simplified?

iren2701 [21]

Answer:

$\frac{3x+7}{x+2}$

Step-by-step explanation:

Given the following question:

$\frac{(x+4)(3x+7)}{(x+4)(x+2) }$

In order to simplify the expression given we can only cancel the common factor which is four.

$\frac{(x+4)(3x+7)}{(x+4)(x+2) }$
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$\frac{x+4}{x+4}$
$=\frac{3x+7}{x+2}$

Cannot be simplified further due to it not having any more common factors. Your answer is "3x + 7 / x + 2."

Hope this helps.