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2 years ago

INCREDIBLY URGENT!!

Mathematics

1 answer:

Gemiola [76]2 years ago

3 0

Answer:

When you see a formula like this, try to operate, so you will see some identities sooner or later. In this case, we have a substraction identity:

\frac{cos ( \alpha - \beta )}{cos \alpha cos \beta } = \frac{cos \alpha cos \beta + sin \alpha sin \beta }{cos \alpha cos \beta } = 1 + tan α · tan β

Step-by-step explanation:

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2 years ago

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Andreyy89

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Step-by-step explanation:

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3 years ago

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2 years ago

solve systems of equation. equation number 1: 9 x squared + 4 y squared equals 144. equation 2: x squared plus y squared equals

grigory [225]

$9x^{2} + 4y^{2} =144$
$x^{2} + y^{2}=24$

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by the difference
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3 years ago

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Answer:

w = 5

Step-by-step explanation:

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(Graph, just switch w to x)

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2 years ago

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