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Write the first five terms of the sequence whose general term is an=3n−4

Short Answer

Expert verified

The first five terms of the sequence with the general term as an=3n−4are -1,2,5,8 and 11

Step by step solution

01

Step 1. Given Information

Theexpressionforthegeneraltermsisgivenasan=3n−4Wehavetofindthefirstfivetermsofthesequence.

02

Step 2. Find the first term

Forthefirsttermsubstituten=1,⇒a1=31−4=3−4=−1

03

Step 3. Find the second term

Forthesecondtermsubstituten=2,⇒a2=32−4=6−4=2

04

Step 4. Find the third term

Forthethirdtermsubstituten=3,⇒a3=33−4=9−4=5

05

Step 5. Find the fourth term

Forthefourthtermsubstituten=4,⇒a4=34−4=12−4=8

06

Step 6. Find the fifth term

Forthefifthtermsubstituten=5,⇒a5=35−4=15−4=11

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