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Question
2
x
+
2
1
-
x
=
3
হলে, x = কত?
(1,2)
(0,2)
(1,3)
(0,1)
ANSWER : 4
Descrption
<math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mn>2</mn><mi>x</mi></msup><mo> </mo><mo> + </mo><msup><mn>2</mn><mrow><mn>1</mn><mo> - </mo><mi>x</mi></mrow></msup><mo> = </mo><mn>3</mn><mspace linebreak = "newline"/><mo>⇒</mo><msup><mn>2</mn><mi>x</mi></msup><mo> + </mo><mfrac><msup><mn>2</mn><mn>1</mn></msup><msup><mn>2</mn><mi>x</mi></msup></mfrac><mo> = </mo><mn>3</mn><mspace linebreak = "newline"/><mo>⇒</mo><mi>a</mi><mo> + </mo><mfrac><mn>2</mn><mi>a</mi></mfrac><mo> = </mo><mn>3</mn><mo>[</mo><msup><mn>2</mn><mi>x</mi></msup><mo> = </mo><mi>a</mi><mo>]</mo><mspace linebreak = "newline"/><mo>⇒</mo><msup><mi>a</mi><mn>2</mn></msup><mo> + </mo><mn>2</mn><mo> = </mo><mn>3</mn><mi>a</mi><mspace linebreak = "newline"/><mo>⇒</mo><msup><mi>a</mi><mn>2</mn></msup><mo> </mo><mo> - </mo><mn>3</mn><mi>a</mi><mo> </mo><mo> + </mo><mn>2</mn><mo> = </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><msup><mi>a</mi><mn>2</mn></msup><mo> </mo><mo> - </mo><mn>3</mn><mi>a</mi><mo> </mo><mo> - </mo><mi>a</mi><mo> + </mo><mn>2</mn><mo> = </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><mi>a</mi><mo>(</mo><mi>a</mi><mo> - </mo><mn>2</mn><mo>)</mo><mo> - </mo><mn>1</mn><mo>(</mo><mi>a</mi><mo> - </mo><mn>2</mn><mo>)</mo><mo> = </mo><mn>0</mn><mspace linebreak = "newline"/><mo>⇒</mo><mo>(</mo><mi>a</mi><mo> - </mo><mn>2</mn><mo>)</mo><mo>(</mo><mi>a</mi><mo> - </mo><mn>1</mn><mo>)</mo><mo> = </mo><mn>0</mn><mspace linebreak = "newline"/><mi>এ</mi><mi>খ</mi><mi>ন</mi><mo>,</mo><mo> </mo><mi>a</mi><mo> - </mo><mn>2</mn><mo> = </mo><mn>0</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mi>এ</mi><mi>ব</mi><mi>ং</mi><mo> </mo><mi>a</mi><mo> - </mo><mn>1</mn><mo> = </mo><mn>0</mn><mo> </mo><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mo> </mo><mi>a</mi><mo> = </mo><mn>2</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mi>এ</mi><mi>ব</mi><mi>ং</mi><mo> </mo><mo> </mo><mi>a</mi><mo> = </mo><mn>1</mn><mo> </mo><mspace linebreak = "newline"/><mo>⇒</mo><msup><mn>2</mn><mi>x</mi></msup><mo> = </mo><mn>2</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mi>এ</mi><mi>ব</mi><mi>ং</mi><mo> </mo><mo> </mo><msup><mn>2</mn><mi>x</mi></msup><mo> = </mo><mn>1</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mspace linebreak = "newline"/><mo>⇒</mo><msup><mn>2</mn><mi>x</mi></msup><mo> = </mo><msup><mn>2</mn><mn>1</mn></msup><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mi>এ</mi><mi>ব</mi><mi>ং</mi><mo> </mo><msup><mn>2</mn><mi>x</mi></msup><mo> = </mo><msup><mn>2</mn><mn>0</mn></msup><mspace linebreak = "newline"/><mo>⇒</mo><mi>x</mi><mo> = </mo><mn>1</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mi>এ</mi><mi>ব</mi><mi>ং</mi><mo> </mo><mi>x</mi><mo> </mo><mo> = </mo><mn>0</mn><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mo> </mo><mspace linebreak = "newline"/><mo>.</mo><mo>'</mo><mo>.</mo><mi>x</mi><mo> = </mo><mo>(</mo><mn>0</mn><mo>.</mo><mn>1</mn><mo>)</mo><mo> </mo></math>
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