Answer:
2:7
Step-by-step explanation:
4+10=14
The least common factor is 2.
4/2=2
14/2=7
The main units are inches, centimeters, meters, feet, and yards.
Answer:correct
Step-by-step explanation: >
<span>hello :
</span>cot(-x) tan(x)=-1......(*)
* cot(x) = 1/tan(x)
cot(-x) = -cot(x)= -(1/tan(x))
cot(-x) tan(x) = -(1/tan(x))×tan(x)=-1