1800-150-456-789
FlagBACK
Flag Integral Calculus> let a = min (x²+4x+5,x belongs to R ) and...
question mark

let a = min (x²+4x+5,x belongs to R ) and b = lim??0 1-cos 2?÷?²then find the value of a-b÷a+b

kenadi kumar , 11 Years ago
Grade 12
anser 1 Answers
Sunil Raikwar

Last Activity: 11 Years ago

a=(x+2)2+1

so minimum value of a is 1
b=lim(x tend to 0) {1-cos2x/x2}=lim(x tend to 0) {2sin2x/x2}=2lim(x tend to 0){sinx/x}=2
(a-b)/(a+b)=(1-2)/(1+2)=-1/3

Thanks & Regards
Sunil Raikwar
askIITians faculty

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on integral calculus

question mark
The area of a square field is 640000cm2.what is its area in hectares
integral calculus
1 Answer Available

Last Activity: 2 Years ago

question mark
Please solve this integration. I am facing difficulty in it
 How to solve this. Please solve anyone. Humble request
integral calculus
0 Answer Available

Last Activity: 3 Years ago

question mark
Using laplace transform, solve d2y/dt2 + dy/dt = t2 +2t given that y=4 and y’=-2 and t=0
integral calculus
0 Answer Available

Last Activity: 3 Years ago

question mark
how to solve this?
this is interger type question .
integral calculus
0 Answer Available

Last Activity: 3 Years ago