Mathematics
Assertion (A): If log10x log105 = log1020 ⇒ 5x = 20 and x = 4 Reason (R): If log10x log105 = log1020 ⇒ x + 5 = 20 and x = 15 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true. 4. Both A and R are false.
Related Questions
Assertion (A): 252025-2020-2-2-1 = 1.
Reason (R): Any number raised to the power zero (0) is always equals to 1.
- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.
Assertion (A): logx (m x n x p) = logx m + logx n + log p.
Reason (R): The logarithm of a product at any non-zero base is equal to the sum of the logarithms of its factors at the same base.
- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.