1.
Read the question given below
If a + b = 10 and ab = 21, then the value of (a – b)2 is
2.
Read the question given below
x2 - y2 = 80 and x – y = 8,then the average of x and y is
3.
Read the question given below
5.
Read the question given below
If a +b + c = 10 and a2 +b2 + c2 =36 then ab + bc + ca=___
6.
Read the question given below
7.
If p + q = 10 and pq = 5, then the numerical value of p/q +q/p will be
8.
Read the question given below
If (64)2 - (36)2 = 20 x , then x = ?
9.
Read the question given below
If x2 – 3x + 1 = 0, then the value of x + 1/x is
10.
Read the question given below
11.
Read the question given below
12.
Read the question given below
13.
Read the question given below
14.
Read the question given below
If x–y =4 and xy=21 then x3– y3 =__
15.
Read the question given below
