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Bishesh Gautam • asked a question

Prove that the angle between tangents from (-2,3) to y2 = 8x are at right angles.

Here, the given equation of parabola is y2= 8x.

The equation of tangent to the parabola y2=8x is,

y= mx + 2/m

This tangent passes through the point (-2, 3)

So, 3 = -2m + 2/m

or, 3m + 2m2 = 2

or, 2m2+3m - 2= 0

or, 2m2 + (4 - 1)m -2 = 0

or, 2m2 + 4m - m - 2 = 0

or, 2m(m + 2) - 1(m+2) = 0

or, (m + 2) (2m - 1) = 0

Either, Or,

m = -2 m = 1/2

Required angle is,




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Mandip Shakya • over 1 year ago

Crush

From the moment I met you ya

My life was all you

You’re the star that turns ordinaries in to extra ordinaries

One after another everything is special

The things you’re interested in the way you talk or walk and every little trivial of yours

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Rabin Kalikote

Hey man! Did you talk to her?

Reply 11mo
Write two difference between nascent and molecular hydrogen • over 1 year ago

My exam is near so I was search a right answer


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Nikas Ghimire • almost 2 years ago

There are different ways to visualize infinity to ponder upon. This is some random thing about infinity in my head which I'll be mentioning.

Imagine any number, Keep on adding a certain value to it, Since we are talking big here, there is no limit to how much you add.

Keep on adding, Imagine that the progress of increment is like a progress bar. So, Is the progress bar really progressing? Since it doesnt really have an end and no...

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Rabin Kalikote

Where could be the end? Any thoughts?

Reply almost 2y
Nikas Ghimire

The end is when node_modules finishes installing.

almost 2y
Puspak Sah • asked a question

Explain Dalton's atomic theory with its postulates. Write down limitation of theory and merits of atomic theory.


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Prasiddha Subedi • about 1 year ago

Journal Entry: February 16th, 2023

Dear Journal,

As a student, I've always dreamed of making a difference in the world. But lately, I've been feeling a bit overwhelmed and unsure about how to turn that dream into a reality. That's why I've decided to start keeping a journal, to document my journey and hopefully inspire others along the way.


I remember when I first started college, I was so excited to be there. The campus was bustling...

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Aditya Baniya • asked a question

A solid tied at the end of a string is revolved in vertical. At what point the tension in the string will be the greatest?

1) At the top

2) At the bottom

3) Half a way towards top

4) Half a way towards...

At the bottom-is the correct one.


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