3 years ago

Tan(x+y)=x. (2 3) , what is dy/dx

Mathematics

2 answers:

horsena [70]3 years ago

8 0

Answer: dydx=2sec2(x)tan(x)

Step-by-step explanation:

Levart [38]3 years ago

7 0

Answer:

0/0

Step-by-step explanation:

Unsure, used a calculator to help

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What is the area of triangle PQR? Round to the nearest tenth of a square unit.

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111.3 square units.

EXPLANATION

The formula for calculating the area of a triangle is.

$Area = \frac{1}{2} \times base \times height$
Let us the side of the triangle with side 12 units to be the base of the triangle.

Then the height of the triangle can be determined from the diagram using trigonometry.

$\sin(68 \degree) = \frac{height}{20 }$

$height = 20 \sin(68 \degree)$

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We now plug in the values in to the formula to obtain,

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