If 10 times the 10 term is equal to the 15 times the 15 term , show that 25 term of AP is zerp.

If 10 times the 10 term is equal to the 15 times the 15 term , show th

1.	If 10 times the 10 term is equal to the 15 times the 15 term , show that 25 term of AP is zerp.
Answer» 10[a+9d] = 15[a+14d]=> 2[a+9d] = 3[a+14d]=> 2a +18d = 3a + 42d=> a + 24d = 0=> a + (25-1)d = 0Therefore 25th term = 0