Mathematics
Consider the following two statements:
Statement 1: 2m x 3n = (2 + 3)m + n, where m, n are positive integers.
Statement 2: If a is a rational number, and m, n are integers, then am.an = am + n
Which of the following is valid?
Both the Statements are true.
Both the Statements are false.
Statement 1 is true, and Statement 2 is false.
Statement 1 is false, and Statement 2 is true.
Answer
According to statement 1 :
2m x 3n = (2 + 3)m + n, where m, n are positive integers.
This statement does not reflect any general law of exponents.
∴ Statement 1 is false.
According to statement 2 :
If a is a rational number, and m, n are integers, then am.an = am + n
This is one of the fundamental laws of exponents. It holds for any rational base, and all integer exponents.
∴ Statement 2 is true.
Hence, option 4 is the correct option.
Related Questions
Assertion (A): -10 + π is an irrational number.
Reason (R): Sum of a non-zero rational number and an irrational number is an irrational number.
Assertion (A) is true, Reason (R) is false.
Assertion (A) is false, Reason (R) is true.
Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct reason for Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct reason (or explanation) for Assertion (A).