Answer:
The area is π= 3.14 approx
Hope it helps!
Step-by-step explanation:
Area of circle = πr^2
Radius= r = 1 unit
So area,
= 3.14*(r)^2
= 3.14*(1)^2
= 3.14*1
= 3.14 or π if you want the specific answer
3/4 goes into 3 how many times?
3/4 times x=3
times both side by 4/3
12/12 times x=12/3
1 times x=4
x=4
answer is 4 days
Solution:
LHS = (cosA+cosB)²+(sinA+sinB)²
= (cos²A+2cosAcosB+cos²B)+
(sin²A+2sinAsinB+sin²B)
/* By algebraic identity:
(x+y)² = x²+2xy+y² */
Rearranging the terms, we get
= (cos²A+sin²A)+(cos²B+sin²B)+2(cosAcosB+sinAsinB)
= 1+1+2cos(A-B)
________________________
we know that,
i) cos²x + sin²x = 1
ii) cosxcosy+sinxsiny = sin(x-y)
________________________
= 2+2cos(A-B)
= 2[1+cos(A-B)]
=
=
=$RHS$
Therefore,
(cosA+cosB)²+(sinA+sinB)²
=
••••
diavinad8 and 60 more users found this answer helpful
Log in to add comment
Still have questions?
FIND MORE ANSWERS
ASK YOUR QUESTION
New questions in Math
if the price increased by 10% and the sale is decreased by 5% then what will be the effect on the income?
Bhai top pe Jane ke baad bhaut logo ne report Mardi( ･ั﹏･ั)
Prove that (3 + root 2) is an irrational
hello friends i have created a website for studenteit is very innovative and helpful for science studentsjust type in gogle eduwonderuniverse and you …
nyx-kbsz-ycyfor making friends please
at the end of the record of rights share is
Midpoint of the line segments joining the points (6,2) & (4,4) is _____ *A. (5,3)B.(3,5)C.(-5,-3)D.(-3,-5)
the ratio of volumes of 2 spheres is 125:1331 find the ratio of their surface areas
