Add maths revision
- 2. SET 1 Q1 Q5 Q9 Q2 Q6 Q10 Q3 Q7 Q11 Q4 Q8 Q12
- 3. Q1 The graph of the function g(x)= 15 - 2(x+3)² and the y-intercept is h and has maximum point at (m,n). Find the values of m ,n and h. ANSWE m=-3, n=15 h= -3 R:
- 4. Q2 The first three terms of an arithmetic progression are 5-x , 8 , 2x. Find the value of x ,common difference and the sum of the first 12 terms of the progression. ANSWER: x = 11, d=14, 148
- 5. Q3 Find the equation of a curve which passes through (2,3) and has gradient function equal to x²(4x-3). y=x(4) –x(3)-5 ANSWER:
- 6. Q4 One of the roots of the quad. eq. 3x² + 4px -2p = 0 is 3 times the other root. Find the possible value of p. p is not equal zero. ANSWER: p = -2
- 7. Q5 Find the range of values of x for x(x – 7) < 18. ANSWER: -2 < x < 9
- 8. Q6 The point H(1,-1) internally divides the line joining points A(-2,2) and B in the ratio 3 : 2. Find the coordinates of B. ANSWER: (3 ,-3)
- 9. Q7 Solve the equation : 2x (64) = (1/32)3x+5 ANSWER: x=-31/16.
- 10. Q8 Five alphabets are to be selected from the word “DYNAMIC” and arrange in a row.Find the number of possible selections if (a)No condition is imposed (b) Start with a vowel (a)2520 (b)720 ANSWER:
- 11. Q9 Find the value of f ’ (1) if f(x)= (2x+3)(5-7x)² . ANSWER: 148
- 12. Q10 Given the geometric progression -5, 10/3, -20/9, …….find the sum to infinity of this progression. ANSWER: -3