If a times the ath term of an A.P. is equal to b times the bth term, f

1.	If a times the ath term of an A.P. is equal to b times the bth term, find the (a + b)th term. (a) 0 (b) a2 - b2 (c) a - b (d) 1
Answer» Correct option (a) 0 Explanation: Identify an AP which satisfies the given condition. Suppose we are talking about the second and third terms of the AP. Then an AP with second term 3 and third term 2 satisfies the condition. A times the a^th term = b times the b^th term. In this case the value of a = 2 and b = 3. Hence, for the (a + b^)th term, we have to find the 5^th term. It is clear that the 5^th term of the AP must be zero. Check the other three options to see whether any option gives 0 when a = 2 and b = 3. Since none of the options b, c or d gives zero for this particular value,

If a times the ath term of an A.P. is equal to b times the bth term, find the (a + b)th term. (a) 0 (b) a2 - b2 (c) a - b (d) 1

Answer»

Correct option (a) 0

Explanation:

Identify an AP which satisfies the given condition.

Suppose we are talking about the second and third terms of the AP.

Then an AP with second term 3 and third term 2 satisfies the condition.

A times the a^th term = b times the b^th term.

In this case the value of a = 2 and b = 3.

Hence, for the (a + b^)th term, we have to find the 5^th term.

It is clear that the 5^th term of the AP must be zero.

Check the other three options to see whether any option gives 0 when a = 2 and b = 3.

Since none of the options b, c or d gives zero for this particular value,

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