SATT ACADEMY

Email:

Password:

Remember Me

Forgot your password?

New to Satt Academy? Create an account

or

Log in with Google Account

Edit Description

Fill up the form and submit

Question

f (x) = x^{2} + \frac{1}{x^{- 1}} - 1

হলে নিচের কোনটি সঠিক?

f(0)=

\infty

f(1)=-1

f(1)=0

f(-1)=-1

ANSWER : 4

Descrption

<pre> দেয়া আছে, 
<math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>f</mi><mo>(</mo><mi>x</mi><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><msup><mi>x</mi><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mfrac><mn>1</mn><msup><mi>x</mi><mrow><mo> - </mo><mn>1</mn></mrow></msup></mfrac><mo> - </mo><mn>1</mn><mspace linebreak = "newline"/><mo>&#x21D2;</mo><mi>f</mi><mo>(</mo><mi>x</mi><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><msup><mi>x</mi><mn>2</mn></msup><mo>  +  </mo><mi>x</mi><mo> - </mo><mn>1</mn><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mo>&#xA0;</mo><mi>f</mi><mo>(</mo><mn>0</mn><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><msup><mn>0</mn><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>0</mn><mo>&#xA0;</mo><mo> - </mo><mn>1</mn><mo>&#xA0;</mo><mo> = </mo><mo> - </mo><mn>1</mn><mo>&#xA0;</mo><mspace linebreak = "newline"/><mi>f</mi><mo>(</mo><mn>1</mn><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><msup><mn>1</mn><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mn>1</mn><mo> - </mo><mn>1</mn><mo> = </mo><mn>1</mn><mspace linebreak = "newline"/><mi>f</mi><mo>(</mo><mo> - </mo><mn>1</mn><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><mo>(</mo><mo> - </mo><mn>1</mn><msup><mo>)</mo><mn>2</mn></msup><mo>&#xA0;</mo><mo>  +  </mo><mo>(</mo><mo> - </mo><mn>1</mn><mo>)</mo><mo>&#xA0;</mo><mo> - </mo><mn>1</mn><mo>&#xA0;</mo><mo> = </mo><mo> - </mo><mn>1</mn><mo>&#xA0;</mo></math>
</pre>

Please, login first. click here to login

Cancel Login

©2024 SATT ACADEMY. All rights reserved.