X=-1 y=-1, x=1 y=5, x=3 y=11
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:
Given:
The equation is

To find:
The value of x.
Solution:
We have,

Isolating the variable, we get




Therefore, the value of x is 44.2.
The answer to you question is B
Answer:
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Step-by-step explanation:
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