CHAPTERS COVERED: #ARITHMETIC PROGRESSION & #QUADRATIC EQUATION
MARKS: 30
1. Find
the first five terms of the following sequences, whose nth terms are
given. tn =
4n – 3
2. Which of the following lists of numbers are
Arithmetic Progressions? Justify.
1, 3, 6, 10, .....
5. What will be her salary after 20 months? [Ans.]
6. Write the following quadratic
equations in standard form ax2 +
bx + c = 0. 7 – 4x –x2 = 0 [Ans]
7. Solve the following quadratic equations by factorization
method. x2 – 5x +
6 = 0 [Ans.]
8. Solve the following quadratic equations by using
formula. m2 –
3m – 10 = 0 [Ans]
9. Determine the nature of the roots of the
following equations from their discriminants : y2 – 4y – 1 = 0 [Ans.]
10. Form the quadratic equation if its roots are
: 5 and – 7 [Ans.]