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ts polycet 2021 | Solved Previous Question Papers 2021 Maths

Chapter 5: Quadratic Equations

 

1.The roots of x2 + x – 6 = 0 are
x2 + x – 6 = 0 యొక్క మూలాలు
(1) 2, – 3            4(2)   –2, 3                     
(3) 2, 3                            (4) –2, –3
Answer:  (1)                                            

          

2. If α, β are the roots of the quadratic equation ax2 + bx + c = 0, a ≠ 0 then TS POLYCET 2021 - Quadratic Equations 1=

α, β లు ax2 + bx + c = 0, a ≠ 0 సమీకరణం యొక్క మూలాలు అయిన,TS POLYCET 2021 - Quadratic Equations 1=                 

TS POLYCET 2021 - Quadratic Equations 2

Answer:  TS POLYCET 2021 - Quadratic Equations 3                              

          

3. If x2 + kx + 1 = 0 has a root x = 1, then k =
x2 + kx + 1 = 0 సమీకరణం కు x = 1 ఒక మూలం అయిన, k =
(1) 1                                    (2) 2                         
(3) 3                                  (4) – 2

Answer:  (4)

          

4. If the roots of the quadratic equation ax2 + bx + c = 0 are sin α and cos α, thenTS POLYCET 2021 - Quadratic Equations 7=

sin α మరియు cos α లు ax2 + bx + c = 0 యొక్క మూలాలు అయిన TS POLYCET 2021 - Quadratic Equations 7

(1)  TS POLYCET 2021 - Quadratic Equations 10                          (2)  TS POLYCET 2021 - Quadratic Equations 9                  

 (3)    a2                         (4) b2

Answer:   TS POLYCET 2021 - Quadratic Equations 9

          

 

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