Which term of AP 134, 129,124,....... is the first negative term

1.	Which term of AP 134, 129,124,....... is the first negative term
Answer» a=134, d=-5Let the nth term of the given AP be the first negative term. ThenTn<0{a+(n-1)d}<0{134+(n-1)(-5)}<0134-5n+5<0139-5n<05n>139n>139/5n>27.8n=2828th term is the first negative term Let its xth term is first negative term so A=a+(n-1)d. A=129+(n-1)(-9) A=129-9n+9. A=138-9n. Aage kudh try karo 28

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