• Call Us : 03082533000 (WhatsApp)
  • Email Us : TestPointpk.com@gmail.com
Sticky Note
If x + 1/x = 10, then what is the value of x² + 1/x²?
  1. 100
  2. 98
  3. 102
  4. None of these
Explanation

Given x + 1/x = 10:

Step 1: Square both sides

(x + 1/x)² = 10²

x² + 2(x)(1/x) + 1/x² = 100

x² + 2 + 1/x² = 100

Step 2: Solve for x² + 1/x²

x² + 1/x² = 100 - 2

x² + 1/x² = 98

Related MCQs

  1. The point will always lie on the y-axis.
  2. The point will always lie on the x-axis.
  3. The point will always lie in the first quadrant.
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 21
  2. 22
  3. 23
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 17
  2. 15
  3. 19
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 40
  2. 45
  3. 50
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

  1. 8x + 5 = 0
  2. 8(x + 5) = x
  3. 8x = x + 5
  4. None of these
اس سوال کو وضاحت کے ساتھ پڑھیں

All Rights Reserved © TestPointpk.com