Question

How is this possible ?
plz figure out and re-write the formula.

NCERT galt ho skti h?? ●_●
​

Answer 1

Step-by-step explanation:

1.

∫ dx/√1 - x²

Let x = sin u, then dx = cos u du.

==> ∫(1/√1 - sin²u) * cos u du

=> ∫(1/√cos²u) * cos u du

=> ∫(1/cosu) * cos u du

=> ∫1 du

=> u + C

=> sin⁻¹x + C

(2)

Derivative of d/dx cos⁻¹(x) = -1/√1 - x²

It can also be written as,

==> ∫dx/√1 - x² = -cos⁻¹ x + C

#Hope my answer helped you!

Answer 2

Answer:

Hope the above attachment helps you......alien ji....xd