Mathematics
Assertion (A): The sum of first 99 natural numbers is 4950. Reason (R): The sum of first n natural numbers is . 1. Assertion (A) is true, but Reason (R) is false. 2. Assertion (A) is false, but Reason (R) is true. 3. Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A). 4. Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).
Related Questions
Observe the sequence of the terms : 3, 8, 13, …………..
Assertion (A): 53 is a term of this A.P.
Reason (R): Its first term is 3 and common difference is 5.
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.
Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).
Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).
Given x, y, z are in A.P.
Assertion (A): z, y, x are in A.P.
Reason (R): The term of an A.P. taken in reverse order also forms an A.P.
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.
Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).
Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).
Write the first four terms of the A.P. when its first term is -5 and common difference is -3.