If log 10 7 = a , then log 10 1 is equal to: 70 Options: A . &nbsp- (1 + a ) B . &nbsp(1 + a ) -1 C . &nbsp a 10 D . &nbsp 1 10 a

Answer: Option A log 10 1 70 = log 10 1 - log 10 70 = - log 10 (7 x 10) = - (log 10 7 + log 10 10) = - ( a + 1).

If log10 7 = a, then log101is equal to:70

Question

If log₁₀ 7 = a, then log₁₀

1

is equal to:
70

Options:

A . - (1 + a)

B . (1 + a)^-1

C . a 10

D . 1 10a

Answer: Option A

log₁₀

70
= log₁₀ 1 - log₁₀ 70
= - log₁₀ (7 x 10)
= - (log₁₀ 7 + log₁₀ 10)
= - (a + 1).

Was this answer helpful ?

Next Question

Question 1. If log10 2 = 0.3010, the value of log10 80 is:....

Question 2. The value of1+1+1is:log3 60log4 60log5 60....

Question 3. If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:....

Question 4. Which of the following statements is not correct?....

Question 5. If log 2 = 0.3010 and log 3 = 0.4771, the value of log5 512 is:....

Question 6. If log 27 = 1.431, then the value of log 9 is:....

Question 7. **Hidden Equation** is equal to:....

Question 8. $${\text{If}}\,{\text{log}}\frac{a}{b} + {\text{log}}\frac{b}{a} = {\text{log}}(a + b),$$ then:....

Question 9. If **Hidden Equation** are in arithmetic progressi.... are in arithmetic progression, then x is equal to

Question 10. If **Hidden Equation** equal to?

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0