Class 12 Ex 6.2 Q14 Math | Chapter6 Class12 | Q14 Ex 6.2 Class 12 Math | Ex 6.2 Q14 Class 12 Math

Class 12 Math Chapter6 Ex6.2 Q14
Chapter6 Class12 Nexa Classes
Class 12 Math Application of Derivatives
Class - 12 Ex 6.2 Q14 Math's Application of Derivatives NCERT CBSE
Ex 6.2 Q14 Class 12 Math Application of Derivatives | Q14 Ex 6.2 Class 12 Math |
Class 12 Math's Ex 6.2 Q14
Ex 6.2 Q14 Class 12 Application of Derivatives NCERT Math
Class-12 Ex 6.2 Q14 Application of Derivatives NCERT Math
Class 12th Ex 6.2 Q 14 Application of Derivatives Math's CBSE NCERT
Ex 6.2 Q14 Chapter 6 Application of Derivatives Class 12 Math's Ncert
Class-12 Ex 6.2 Q14 Application of Derivatives NCERT Math
@Nexa Classes
@Nexa Classes 9th 10th
@Nexa Classes 6th 7th 8th
@Math Wala Classes
Nexa Classes Online
Online classes class 12th by Nexa Classes
class 12th Online Classes
Cbse Class 12th Classes
Class12th Ncert Math Classes
Exercise 6.2 Class 12th Math
Follow me on Instagram

#ApplicationOfDerivativesClass12
#NexaClasses
#Chapter6Class12thMath
#nexaclasses
#ncertmathclass12th
#class12thncertmathchapter6
#ncertclass12thmath
#ncertmathchapter6class12th
○Class 12th ncert math solution
○ncert math class 12th solution chapter6
○class 12th math solution chapter6
○chapter 6 class 12th math solution
○cbse class 12th math solution
○ncert solution class 12th math
○class 12 ncert solution of math chapter6 Application of Derivatives

[Red_]

ok don't worry let me explain,
F(x ) = x^2 +ax +1
F'(x) = 2x + a
Since function is strictly increasing, given
F'(x) > 0
2x +a > 0
Solving for a;
2x +a > 0 implies
a > -2x
Now

# a > -2x
Now 1<x<2, given
=> 2< 2x <4
=> -2> -2x >-4
This mean -2x ∈ (-4, -2)
-2x lies between (-4, -2)

But now the secret is here :-
Since a > -2x, (not equal to)
=> a > (-4, -2)
Read as, a is greater then all values between -4 and -2
So what,

a is greater than or equal to -2
a ≥ -2
Therefore least value for a is -2 not -4

If you further need explanation or explanations for any other questions being your doubt, you may reply
#4753

[divyanshshyam]

1 ≤ x ≤ 2
2 ≤ 2x ≤ 4
2+a ≤ 2x+a ≤ 4+a
2+a ≤ f'(x) ≤ 4+a
Since, f'(x) is Increasing.
=> f'(x) >0
=> 2+a > 0
=> a > -2

[aatif]

Sir lekin -4 jo he vo -2 se chota hota he to hamari least value to -4 Hui Naa...clear my doubt sir plz

[SubhashChand-tvjd]

Sir is question me a ka nuntm man puchaa h to negative me 4 hona chai na

[suryash]

Sir humare ncert me open interval me De rakha hai

[Red_]

Kon sa maths sikha rae ho nanhe baccho ko

[rakeshmadaan]

Pls 🙏🙏 guruji cover deleted syllabus Guru jee. We will not make strong fundamental approach

[KKSVLOGS.]

Bhai me to comments me apna doubt clear krne aaya tha yaha pe pta pehle se bhasad machi hui

[topAivideos]

Thanku so much sir me aapka jitna thanku bolu utna kam hai sir please physics chemistry bhi padhie na English medium se

[gojosatoru]

Sir f'(x)<0 aa gaya na ye to decreasing function hai aur question mein to increasing diya hai

[mohitsandhu]

isme ans a=-1 bhi to aa skta hai agr hum 1/2 le [1, 2] mai

[shahmuneeeb]

Agar least value bolni ha too -4 hogi .par ncert book pe answer -2 ha ..too aap ne ye question galat kar diya .

[pankaj_kashyap]

1:07 sir meri book me to open bracket de rakha h

[manassrivastava]

Sir question badal de rhe h
Nhi ayega to apne hisaab se closed interval lga denge

Thoda effort dedijiye sir

[psipqnm]

Sir class 11th me apke vedio se sikh kr exam diya tha jisme ak q 4 mark ka tha magar mujhe 2 hi mila tha sir ne bola incomplete hai

[psipqnm]

Bhai minus ko bhul jao aur least value dhundho😂😂😂

[ujjwalpaatwal]

-2 aur -4 m se least value toh -4 hogi na

[ritikasengar]

Sir ye aap ne jo reason diya hai vo shi hai

[sureshk]

Least value of -2 and -4 is -4 why you say -2.

[Rajushorts]

Sir न्यूनतम value bola hai isliye Ans -4, , hoga