Hello,
r=5(1+cos t)
r'=5(-sin t)
r²+r'²= 25[(1+cos t)²+(-sin t)²]=50(1-cos t)=50 sin² (t/2)
Between 0 and π, sin x>0 ==>|sin x|=sin x
Here is the method but i may have make some mistakes.
Answer:
-3x+30
Step-by-step explanation:
factors of are and .
<u>Step-by-step explanation:</u>
Here we have , to identify all factors of this expression . let's find out :
Expression :
⇒
Now , -9x can be written as :
⇒
Putting this value
⇒
Taking out common terms we get
⇒
⇒
⇒
Therefore , factors of are and .