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Sachin Rana

IIIrd Year UG, IIT Bombay | YouTuber with over 129k subscribers at Sachin Rana [IITB] | Organic Chemistry & Maths Expert.

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(8)

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Shreya Shastri

8 months ago

thank you so much sir it was very helpful for me

1

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Abantika Karmakar

a year ago

There are two possible lines for the third side : 3x+y+2=0 for m=-3 and x-3y+4=0 for m= 1/3.

8

Reply

Sachin Rana

a year ago

Yes, correct. Good.

Jessica Gulati

a year ago

Plz can you tell me that how angle bisector between the two lines can be third side

Jessica Gulati

a year ago

Plz help me I'm not getting the question

Abantika Karmakar

a year ago

I had not used the angle bisector method.. use the formula that uses slope of two lines to find the angle between them.. from there you get two values for slope

Abantika Karmakar

a year ago

Angle between the first side and the third side and the angle between the second side and the third side will be the same as it is an isosceles triangle. Equate the two once with a plus sign and once by a negative sign as it is the modulus which we caculate hence two values.

Jessica Gulati

a year ago

Thank u ☺️☺️☺️

Abantika Karmakar

a year ago

Anytime:-)

Praveen Singh

10 months ago

thanks

Abantika Karmakar

10 months ago

Welcome ☺️

Praveen Singh

10 months ago

ur able to solve so fast

Abantika Karmakar

10 months ago

Thanks.. I love some of the topics of maths but at some I'm really weak like hyperbola.. not at all good at that 😅

Praveen Singh

10 months ago

u should just see to it that who question is fooling u

Praveen Singh

10 months ago

can u tell me how u understand question tricks so well

Abantika Karmakar

10 months ago

Maths is all about practice.. you will yourself develop your shortcuts (TBH I just try to avoid lengthy calculations as much as I can). Also refer to the test series available.

Praveen Singh

10 months ago

thanks for help u girl

Praveen Singh

10 months ago

I am boy not man

Praveen Singh

10 months ago

oh sorry

Abantika Karmakar

10 months ago

It's ok.. BTW good luck for all your upcoming tests.

Praveen Singh

10 months ago

to u also but it name

Praveen Singh

10 months ago

no ur name I mean

Praveen Singh

10 months ago

okay

Praveen Singh

10 months ago

do u use social media

Praveen Singh

10 months ago

do you use social media

Praveen Singh

10 months ago

yes very nice ur full focus to be all india rank one

Abantika Karmakar

10 months ago

Haha.. thanks.. hoping the same for you too ;-)

Praveen Singh

10 months ago

you are more intelligent then me

Praveen Singh

10 months ago

u to

Praveen Singh

10 months ago

bye

Praveen Singh

10 months ago

all the best to face the world

Praveen Singh

10 months ago

can we be friends u solve doubt and I will help u in understanding trick question

Praveen Singh

10 months ago

thanks

Abantika Karmakar

10 months ago

Welcome ☺️

Praveen Singh

10 months ago

who to calculate mole concept

Praveen Singh

10 months ago

hi

Praveen Singh

9 months ago

thanks

χტ ϟ PαϻThεSϼαϻ420

5 months ago

"Angle between the 1st side and 3rd side and the angle between the 2nd side and 3rd side will be the same", how do you know that? Why can't the angle between 1st and 2nd side and angle between 2nd and 3rd side be equal?
I think your case is only valid when the angle between the two given lines is >90°.

χტ ϟ PαϻThεSϼαϻ420

5 months ago

two given lines in the question is >90°, but I calculate it and it's close to 50°. Do you have some explanation on how you decided that those angles would be the only one that are equal?

χტ ϟ PαϻThεSϼαϻ420

5 months ago

Goddamit I didn't see that two equal sides are given in the question. How on earth do you delete comments here, what the heck.

Raghav Magotra

9 months ago

sachin sir i solved the hw question by simply letting the slope of the line to be 'm'
As we know that two lines are equally inclined with the third line ( which we have to find ) so i just find the tan of angle between both of them and equate so i got two condition one is impossible as m = iota so by other condition i got the equations which are same as yours

0

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Bhargav Gohil

a year ago

bhaiya in homework question, we can also do by equal angle method na ?
as angle B and angle C are equal
we can find the slopes of line BC and can form the equation.

0

Reply

Bhargav Gohil

a year ago

bhaiya which course you are going to take after this?

0

Reply

Sachin Rana

a year ago

Circles.

Bhargav Gohil

a year ago

okay ...
Thanks Bhaiya

Jessica Gulati

a year ago

x-3y+4=0 for m=1/3 and x+2y-1=0 for m=-1/2

1

Reply

Sachin Rana

a year ago

It's incorrect

Jessica Gulati

a year ago

Plz tell me that how angle bisector of two lines can be third side

Jessica Gulati

a year ago

I'm not getting the question plz tell me

χტ ϟ PαϻThεSϼαϻ420

5 months ago

Draw the figure, you will see the angle subtended by the third(unknown) side is the same as half of the obtuse angle between the two lines given in the question (by alternate angles property).

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