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Write the First Three Terms of the A.P. Whose Common Difference is ‒3 and First Term is 4. - Algebra

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Write the first three terms of the A.P. whose common difference is ‒3 and first term is 4.

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Solution

a = 4, d = –3
Hence,
t1 = 4
t2 = t1 + d = 4 + (–3) = 4 – 3 = 1
t3 = t2 + d = 1 + (–3) = 1 – 3 = –2
Thus, the first three terms of the A.P. are 4, 1 and –2.

Concept: Arithmetic Progression
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