Answer:
you need to tell us the entire question
Step-by-step explanation:
Answer:
19%
Step-by-step explanation:
<h2>
<em>I Think </em></h2>
If u tell me the solution's like are u evaluating or what, which method is it i can tell u the answer <span />
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:
