Mathematics
Mathematics
Mathematics
Mathematics
Mathematics
100
If x2 – 2xy – 3y2 = 1
and x + y = 7
Then x – 3y = ………
1/7
100
x2 + k = (x – 5) (x + 5)
Then k = ………
-25
100
If a – b = 3 , a + b = 5
Then 3a2 – 3b2 = ………
45
100
Choose the correct answer:
Sixth the number:
212 × 312 is ……
( 62 , 64 , 611 , 623 )
611
100
Choose the correct answer:
Xm – 1 × .......... = 1 , X ≠ 0
( Xm – 1 , X-m – 1 , Xm + 1 , X-m + 1 )
X-m + 1
200
If (a – b) = 1
and (x + y) = -3
Then a(x + y) – b(x + y) = ………
-3
200
If the area of a square is 16 a2 – 40 ab + 25 b2
Then the side length is ………
(In terms of a and b)
4a – 5b
200
If the area of the triangle is 42 cm2 and its height = 7 cm.
Then the length of the corresponding base = ………
12 cm.
200
If x3 y-3 = 8
, then y2 x-2 = ……
1/4
200
If 3x + 2 = 18
, then (81)x = ……
16
300
A parallelogram whose area = 50 cm2 and the length of its base is twice the corresponding height
, then this height = ………
5 cm.
300
If a2 – b2 = 45
, a – b = 5
Then 
= ………
+ 3
300
(x – y) (x + y) (x4 + x2 y2 + y4) = ………
x6 – y6
300
If x = 2 is a root of the equation:
x2 – 6x + k = 0
, then k = ……
8
300
The S.S. of the equation:
3/12= 25/x^2
In R is ……
{±10}
400
Find the length of the height of a rhombus whose diagonals lengths 12 cm. , 16 cm.
9.6 cm.
400
If x^2- y^2=20 , x-y= 2
x^2-xy+ y^2=28
Find:
(x^3+ y^3)/70
4
400
If the area of a rhombus is 90x cm2 , the lengths of the two diagonals are x , 3x cm.
Find x
60
400
Find the S.S. in R:
2^(x^2-9)=1
{-3 , 3}
400
The length of the projection of a line segment on a straight line perpendicular to it is ……
Zero
500
Factorize:
(5b – 2)3 – 5b + 2
(5b – 2) (5b – 3) (5b – 1)
500
If Δ ABC ~ Δ DEF
Find the length of 
6 cm.
500
Two integers whose sum is 2 and the sum of their squares = 34
Find the sum of their cubes
98
500
Find the S.S. in R:
{4}
500
The trapezium whose middle base length is X cm. And its height =
the length of the middle base
, its area = …… cm2
X^2/2