Question

find the first two terms tn=2n-5​

Answer 1

AnswEr :-

• 1st term of the AP is -3
• 2nd term of the AP is -1

Given :-

• Nth term of an AP aa 2n - 5

To Find :-

• First two terms of the AP

SoluTion :-

Here,

nth term of an AP is given as :-

Tn = 2n - 5

• 1st term => 2 (1) - 5 => 2 - 5 => -3
• 2nd term => 2 (2) - 5 => 4 - 5 => -1

Hence, the first two terms of the AP are -3 and -1 respectively.

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More To Know :-

• Tn = a + (n - 1)d

[ how to find nth term of an AP ]

• Sn = n/2 { 2a + (n - 1)d }

[ how to find sum of the nth terms of the AP ]

Where,

• a = first term
• n = nth term

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