a+(n-1)d=2n-2(n-1). find a and d
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Step-by-step explanation:
Arithmetic Progression
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P.
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P. Tn = a +(n -1) d.
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P. Tn = a +(n -1) d.Thus if a is the first term and d is the common difference of an A.P., then the A.P. is a, a +d, a +2 d, ..., a +(n -1) d or a, a +d, a +2 d, ... according as it is finite or infinite.
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P. Tn = a +(n -1) d.Thus if a is the first term and d is the common difference of an A.P., then the A.P. is a, a +d, a +2 d, ..., a +(n -1) d or a, a +d, a +2 d, ... according as it is finite or infinite.Corollary. If the last term of an A.P. consisting of n terms is denoted by l, then
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P. Tn = a +(n -1) d.Thus if a is the first term and d is the common difference of an A.P., then the A.P. is a, a +d, a +2 d, ..., a +(n -1) d or a, a +d, a +2 d, ... according as it is finite or infinite.Corollary. If the last term of an A.P. consisting of n terms is denoted by l, then l = a +(n -1) d.
A sequence (finite or infinite) is called an arithmetic progression (abbreviated A.P.) iff the difference of any term from its preceding term is constant. This constant is usually denoted by d and is called common difference.General term of an A.P. Tn = a +(n -1) d.Thus if a is the first term and d is the common difference of an A.P., then the A.P. is a, a +d, a +2 d, ..., a +(n -1) d or a, a +d, a +2 d, ... according as it is finite or infinite.Corollary. If the last term of an A.P. consisting of n terms is denoted by l, then l = a +(n -1) d.Note. Three numbers a, b, c are in A.P. iff b -a = c -b i.e. iff a +c = 2b.
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Answer:
a+dn-d=2n-2n+2
a + dn-d=2