1.272727=1.27 can be expressed in the form p/q, where p and q are integers an q≠0 than it is equal to
- 106/99
- 127/99
- 14/11
- 27/99
The decimal representation of −26/45 is
- 0.35555
- -15555
- -.3555
- -0.57777
A rational numbers between −3 and 4.
- -4.5
- -3.5
- 12/2
- 1/2
If x=√3/2, then the value of √(1+a)+√(1−a) is
- √3
- √3/2
- 2+√3
- 2-√3
If x=2.3̅ − 0.9̅, y = 2.5̅ − 0.5̅ ,then x²+y²−2xy is
- 1/4
- √3/2
- 2+√3
- 2-√3
If a=3+2√2 and b=1/a, then a²+b²
- 49
- 34
- 100
- 102
If x=2−√3, then the value of x²+4x+4 is.
- 12+2√3
- 19+8√3
- 12+2√3
- 19-8√3
If √18225=135, then the value of √182.25+√1.8225+√0.018225+√0.00018225 is
- 1.49985
- 14.9985
- 149.985
- 1499.85
If 2ⁿ⁺¹ + 2ⁿ⁻¹ = 640, the value of n is
- 7
- 8
- 9
- 6
The product of (0.09̅ × 7.3̅) is equal to
- 1
- 0
- 2/3
- 1/2
0.142857−0.285714is equal to
- 2
- 1
- 0
- 1/2
Which of the following is the value of a in (√5−√3)/(√5+√3) = a+b√15
- 2
- -1
- -3
- 4
The value of n, when 2ⁿ⁺⁴.3ⁿ⁺¹=288
- 1
- -1
- 0
- 2
Multiply 6√5 by 2√5
- 60√5
- 60
- 20√5
- 30
Divide 8√15 by 2√3
- 4√5
- √15
- 4√3
- 4√15
( √11 − √7) ( √11 + √7)
= ?
- 4
- 5
- 6
- 7
(√3+√7)² =
- 10+2√7
- 10+2√21
- 10+2√3
- 10√7+2√21
Rationalise the denominator of 1/(2+√3)
⋅
- 2+√3
- -2+√3
- 2-√3
- √3-2
Express the 0.6̅ in the form p/q , where p and q are integers and q ≠ 0
- 1/3
- 2/5
- 2/3
- 1/5
Express the 0.3̅ in the form p/q , where p and q are integers and q ≠ 0
- 1/3
- 2/3
- 1/5
- 2/5
(a+√b)(a-√b)=
- a²−b²
- a²−b
- a−b²
- a+b²