30 lessons,

5h 19m

Enroll

7.7k

✕Download

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta

Engineer by degree Mathematician by Heart. Having 22 years of teaching experience.
More than 20000 students selected.

U

Unacademy user

SumitSinghLodhi lodhi

a year ago

sir I didnt get the number line of f(x)=-x-sinx

0

Reply

CB

Cheshta Bhardwaj

a year ago

sir,, by taking 1,2,2,4 in last 2 questions answers is not match,,, why?????

0

Reply

AS

Aakansha Sinha

10 months ago

1,2,2,4, are not in continued proportion as for continued proportion the condition: b^2=ac and c^2=bd should be satisfied. 1,2,2,4 does not satisfy this condition whereas 1,2,4,8 does satisfy this condition

Shreya Chawla

a year ago

in last ques why can't we take 1,2,2,4?

0

Reply

AS

Aakansha Sinha

10 months ago

1,2,2,4, are not in continued proportion as for continued proportion the condition: b^2=ac and c^2=bd should be satisfied. 1,2,2,4 does not satisfy this condition whereas 1,2,4,8 does satisfy this condition

RR

Ragam Ruthvik

a year ago

sir in the last question from 11.09 till the finisher i couldn't get the solving u told 4*4*4/4*4*8+8*8*8 , 64/16*8+512, 1/16*8+8, /136 how could u get 1/10 or otherwise 64/16*8+8*8*8, 1/2+8*8*8, 1/514 will be the answer how did u get 1/10 can you please explain

1

Reply

Pravin kumar

3 months ago

Don't follow sir's way, beacuse there is plus in denominator. so he mistakely cut the powers, we have to plus first then we will get 64/640 that is 1/10.

Pravin kumar

3 months ago

Don't follow sir's way, beacuse there is plus in denominator. so he mistakely cut the powers, we have to plus first then we will get 64/640 that is 1/10.

Aditya Mohan

a year ago

we can take values as 1,1,1,1

0

Reply

RR

Rajan Rajpoot

a year ago

sir 8:06 by solving i get 1/16 bit confused help!

0

Reply

RATIO AND PROPORTION Class - 10 (Proportion part 3)

Continued Proportion 4, 9, 16 ae in co a, , car, in Co

a, b, eld, e cuu c.uhind mohat.. 2

If 3, 9 and x are in continued proportion, find x a. 15 b. 21 C. 27 d. 30

If 3, 9 and x are in continued proportion, find x a. 15 b. 21 C. 27 d. 30 3,9, 21 2

If 48, x and 75 are in continued proportion, find x a. 52 b. 60 C. 64 d. 72

If 48, x and 75 are in continued proportion, find x a. 52 b. 60 C. 64 d. 72

If a, b and c are in continued proportion, find value of a. b2 a2-b2+c2 a-2-b-2+C-2 b. b4 c. b d. 1

If a, b and c are in continued proportion, find value of a. b2 a2-b2+c2 a-2-b-2+C-2 b. b4 c. b d. 1 2 2. 2. 2. 2