Question

4. If 6 times of 6th term is equal to 7 times 7th term, then the 13th term of the A.P is (A)0 (B)6 (C)7 (D)13 5. A system of three linear equations in three variables is inconsistent if their​

Answer 1

Answer:

0

Step-by-step explanation:

⇒ 6 t6 = 7 t7  

⇒ 6(a + 5d) = 7 (a + 6d)

⇒ 6a + 30d = 7a + 42d  

⇒ 30 d – 42 d = 7a – 6a

⇒ -12d = a  t13

⇒ a + 12d (12d = -a)  

⇒ a – a = 0

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