Answer:
It's false
Step-by-step explanation:
1.25*200=250 not 300.
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:
It would have no solutions that's your answer.
Answer:
14.6956521739
Step-by-step explanation:
