Question

1) The pair of equation 5x + 3p =9 and 5x + 9p =18 is ----
A)COINCIDENT LINES
B)INTERSECTING LINES
C)PARALLEL LINES

2)If alpha and beta are zeroes of a polynomial p(x)=x2 + ax + b then polynomial having 1 /alpha and 1 /beta and its zero is
A)x2 - bx + a
B)bx2 +ax+1
C)ax2 + bx +1

3)the decimal expansion of 211 / 2*2*2*2* * 5*5*5*5*5*5 is terminate after how many places of decimals ?

4)if p and q are 121 and 343 ,then the H.C.F of p and q is _________

5)which is irrational ?
a)2 + root 9
b)3 + root 7
c)root 4 + root 9

5)if x = 2 cube * 3 * 5 and y =2 * 3square * 5 then the lcm of x and y is_________

6)if n is a natural number then which of the following end with 5 ?
A)2*6 whole raise to n
B)5 * 2 whole raise to n
C)3 * 5 whole raise to n

7)if the zeroes of the quadratic polynomial 1/2 and -1/2 then the polynomial is
A)4x2 - x + 1
B)4x2-1
C)2X2 + x + 1

8)the pair of equation x =2 and y= -2 has how many solutions ?

9)if p(X) =2x square - 5x + 1 then p(-1) and p(0) is ____________

10)for some integer x every odd integer is of the form
a)x+1
b)x
c)2x+1

10 )from the following rational number wihch of decimal expansion is terminating ---
a)12/15
b)11/60
c)17/35

Answer 1

1) coincident as a1/a2 is not equal to b1/b2 2) bx^2 +ax+1 , 3)4 places of decimal ,4)121 , 5) 3+ root7. 5)don't get the question 6) 3*5 , 7)4x^2-1, 8) infinite ,9)p(-1)=4 p(0)=1 , 10)12/15 as 12/15=4/5 which is terminating