Answer:
45
Step-by-step explanation:
Answer:
- 2 - 4n - 8n²
Step-by-step explanation:
thats ur anser
Answer:
x=18
Step-by-step explanation:
x-4=14
+4 +4
x=18
Answer:
That would be sina.
Step-by-step explanation:
sin(a+b) = sinacosb + cosasinb
sin(a-b) = sinacosb - cosasinb
Adding we get sin(a+b) + sin(a-b) = 2sinaccosb
so sinacosb = 1/2sin(a+b) + sin(a-b)