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kogti [31]
2 years ago
11

Consider this expression.

Mathematics
1 answer:
elena55 [62]2 years ago
6 0

Answer:

79 is the value

Step-by-step explanation:

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snow_tiger [21]

Answer:

c

Step-by-step explanation:

just take out the brackets and add the like terms.

6 0
3 years ago
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Westkost [7]

Answer:

dy/dx = -b/a cot α

Step-by-step explanation:

x² / a² + y² / b² = 1

Take derivative with respect to x.

2x / a² + 2y / b² dy/dx = 0

2y / b² dy/dx = -2x / a²

dy/dx = -b²x / (a²y)

Substitute:

dy/dx = -b²a cos α / (a²b sin α)

dy/dx = -b cos α / (a sin α)

dy/dx = -b/a cot α

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3 years ago
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