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For an Arithmetic Progression if $a_{1}$ is 3 and $a_{10}$ is 39 then $S_{10}$ is
NETNUST Entry TestMathematicsSequence and Series
If $S_{n}=65$ then the number of the series -7+(-5)+(-3)..... is
NETNUST Entry TestMathematicsSequence and Series
The sum of the arithmetic series is denoted by
NETNUST Entry TestMathematicsSequence and Series
The sum of first n terms of an arithmetic series is
NETNUST Entry TestMathematicsSequence and Series
A series consisting of an unlimited number of terms is termed as an
NETNUST Entry TestMathematicsSequence and Series
The sum of an indicated number of terms in a sequence is called
NETNUST Entry TestMathematicsSequence and Series
If -25/2, -7 and -3/2 are three (a)Ms between a and b, then a and b is equal to
NETNUST Entry TestMathematicsSequence and Series
If 5, 7 and 9 are (a)Ms between a and b, then a and b is equal to
NETNUST Entry TestMathematicsSequence and Series
If $\frac{3}{\sqrt{2}}, 2\sqrt{2}\: and\: \frac{3}{\sqrt{2}}$ are three (a)Ms between a and b, then a and b is equal to
NETNUST Entry TestMathematicsSequence and Series
If -3, -11 and two (a)Ms between a and b, then a and b is equal to
NETNUST Entry TestMathematicsSequence and Series
The (a)M between $1-x+x^{2}$ and $1+x+x^{2}$ is
NETNUST Entry TestMathematicsSequence and Series
The arithmetic mean between $2+\sqrt{3}$ and $2-\sqrt{3}$ is
NETNUST Entry TestMathematicsSequence and Series
The (a)M between $\sqrt{5}-4$ and $\sqrt{5}+4$ is
NETNUST Entry TestMathematicsSequence and Series
The (a)Ms between x-3 and x+5 is
NETNUST Entry TestMathematicsSequence and Series
The (a)Ms between $3\sqrt{5}$ and $5\sqrt{5}$ is
NETNUST Entry TestMathematicsSequence and Series
The n(a)Ms between a and b is
NETNUST Entry TestMathematicsSequence and Series
The (a)Ms between $\sqrt{2}$ and $3\sqrt{2}$ is
NETNUST Entry TestMathematicsSequence and Series
If A is the (a)M between the two numbers a and b, then A-a is equal to
NETNUST Entry TestMathematicsSequence and Series
The (a)M between $a_{n-1}$ and $a_{n+1}$ is:
NETNUST Entry TestMathematicsSequence and Series
A number A is said to be the (a)M between the two numbers a and b if a, A, b are in
NETNUST Entry TestMathematicsSequence and Series
If $a_{n-1}=2n-5$ then the nth term of the sequence is
NETNUST Entry TestMathematicsSequence and Series
If $a_{1}=3$ d=7 and $a_{n}=59$ then the number of terms in (a)P is
NETNUST Entry TestMathematicsSequence and Series
If 1/a, 1/b and 1/c are in (a)P., then the common difference is
NETNUST Entry TestMathematicsSequence and Series
If 6th term of a series in (a)P is -2 and 8th term is -8, the first term of the series is
NETNUST Entry TestMathematicsSequence and Series
If a, b, c are in arithmetic progression, then 1/a, 1/b, 1/c are in
NETNUST Entry TestMathematicsSequence and Series