Answer:
c
Step-by-step explanation:
Circumference of a circle =2πr
6.28=2πr
3.14=πr
3.14/π=r
3.14/3.14=r
<h2>therefore,r=1</h2>
Hey there!
c² = 5c
Subtract 5c from both sides:
c² - 5c = 5c - 5c
Simplify :
c² - 5c = 0
c = 5 , c = 0
Answer:
5.93
Step-by-step explanation:
or 
Answer:
tan²x
Step-by-step explanation:
Using the Pythagorean identity
sin²x + cos²x = 1
Divide all terms by cos²x
+
=
, that is
tan²x + 1 = sec²x ( subtract 1 from both sides )
tan²x = sec²x - 1