GUYS QUICK! what is the surface area of a sphere that has a radius of 5 cm
2 answers:
<h2><u>Answer:</u></h2>
☞ Rαdíus σf sphєrє = 5 cm
<h2>◈ <u>Tσ FínD</u> ◈</h2>☞ Surfαcє αrєα σf sphєrє
<h2>◈ <u>Fσrmulα nєєdєd</u> ◈</h2>☞ Surfαcє αrєα σf sphєrє = 4 π r ²
<h2>◈ <u>Sσlutíσn</u> ◈</h2>usíng thє fσrmulα
surfαcє αrєα σf sphєrє = 4 π r ²
suвstítutє thє vαluєs
surfαcє αrєα σf sphєrє = 4 × 3.14 × ( 5×5 ) cm ²
mutíplчíng thє vαluєs
surfαcє αrєα σf sphєrє = 100 cm² × 3.14
Hєncє , Surfαcє αrєα σf sphєrє ís 314cm ².
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Option C:
The coefficient of is 40.
Solution:
Given expression:
Using binomial theorem:
Here
Substitute in the binomial formula, we get
Now to expand the summation, substitute i = 0, 1, 2, 3, 4 and 5.
Let us solve the term one by one.
Substitute these into the above expansion.
The coefficient of is 40.
Option C is the correct answer.