I hope this helps you
(1-cosx)(1+cosx)=1+cosx-cosx-cos²x=1-cos²x=sin²x
sin²x
____
cos²x
tg²x
I dont know exactly how to answer this but I know that the formula for volume is S+S+S+S=V. So hope that helps!
Answer:17
Step-by-step explanation:
I believe the 4th one
an=145+an-1 and a1=20
Answer:
The eighth of an inch scale measures more precisely.
Step-by-step explanation:
An eighth of an inch means that one inch is divided into 8 equal lengths on the scale i.e. the minimum length that can be measured is
inch.
Again a fourth of an inch means that one inch is divided into 4 equal lengths on the scale i.e. the minimum length that can be measured is
inch.
Therefore, the eighth of an inch scale measures more precisely as it can measure more small measurements. (Answer)