Get premium membership and access questions with answers, video lessons as well as revision papers.
a. Log (a + 1) – log (a^2 -1) =log ((a +1)/(a+1)(a-1))
=log (1/(a-1))
b. Log x^4 +log x =log x^5
c. Log 15 + log 3 – log 9 =log (15 x3/9)
=log 5
joseph rimiru answered the question on November 15, 2017 at 19:40
- Simplify (a) ½ log 9 –log 3 (b) 3 – 2 log 5 (c) Log 16 –log 8(Solved)
Simplify
a. ½ log 9 –log 3
b. 3 – 2 log 5
c. Log 16 –log 8
Date posted: November 15, 2017. Answers (1)
- Simplify (a) Log 6 +log 4 (b) Log 4 – log 2 (c) Log 60 – log 20(Solved)
Simplify
a. Log 6 +log 4
b. Log 4 – log 2
c. Log 60 – log 20
Date posted: November 15, 2017. Answers (1)
- Express in terms of x, y, and z given that log a =x, log b =y and log c = z (a) Log a^2b (b) Log...(Solved)
Express in terms of x, y, and z given that log a =x, log b =y and log c = z
a. Log a^2b
b. Log (a/b)
c. Log (a^2b/c)
Date posted: November 15, 2017. Answers (1)
- State the three laws of logarithms.(Solved)
State the three laws of logarithms.
Date posted: November 15, 2017. Answers (1)
- Express the following in terms log x, log y, and log z (a)Log xy (b) Log xyzc. Log (x/y)(Solved)
Express the following in terms log x, log y, and log z
a. Log xy
b. Log xyz
c. Log (x/y)
Date posted: November 15, 2017. Answers (1)
- Express in terms of log x, log y: log (x^2/y^3)(Solved)
Express in terms of log x, log y: log (x^2/y^3)
Date posted: November 15, 2017. Answers (1)
- Write log 1000 – 2 log 50 as a logarithm of a single number(Solved)
Write log 1000 – 2 log 50 as a logarithm of a single number
Date posted: November 15, 2017. Answers (1)
- Given that log 2= 0.3010 and log 3 =0.4771, simplify (a)Log 12 (b) Log 0.75 (c) Log 108 (Solved)
Given that log 2= 0.3010 and log 3 =0.4771, simplify
a. Log 12
b. Log 0.75
c. Log 108
Date posted: November 15, 2017. Answers (1)
- Express the following in logarithmic notationa. 8^2 =64 (b) 8^(1/3) =2 (c) 5^1 =5(Solved)
Express the following in logarithmic notation
a. 8^2 =64
b. 8^(1/3) =2
c. 5^1 =5
Date posted: November 15, 2017. Answers (1)
- Simplify
8x^2 v(9x^2)
v(7x7)
v (60 +4)
(Solved)
Simplify
8x^2 √(9x^2)
√(7x7)
√ (60 +4)
Date posted: November 14, 2017. Answers (1)
- Simplify
v(92 x4)
v81 xv24
v(16 x 13)
(Solved)
Simplify
√(92 x4)
√81 x√24
√(16 x 13)
Date posted: November 14, 2017. Answers (1)
- Simplify
v800
v248
v800
(Solved)
Simplify
√800
√248
√800
Date posted: November 14, 2017. Answers (1)
- Simplify
v(56x2)
v(72) x 1/3
10 v(125 x 6)
(Solved)
Simplify
√(56x2)
√(72) x 1/3
10 √(125 x 6)
Date posted: November 14, 2017. Answers (1)
- Simplify
v(625 x 36)
v(169 x 9)
v(49 x 25)
(Solved)
Simplify
√(625 x 36)
√(169 x 9)
√(49 x 25)
Date posted: November 13, 2017. Answers (1)
- Simplify
8x^2v(9x^2)
v(7x7)
v(60 +4)
(Solved)
Simplify
8x^2√(9x^2)
√(7x7)
√(60 +4)
Date posted: November 13, 2017. Answers (1)
- Simplify
v(92 x4)
v81 xv24
v(16 x13)
(Solved)
Simplify
√(92 x4)
√81 x√24
√(16 x13)
Date posted: November 13, 2017. Answers (1)
- Simplify
v800
v248
v192
(Solved)
Simplify
√800
√248
√192
Date posted: November 13, 2017. Answers (1)
- Simplify
v(56 x 2)
v(72) x 1/3
10v(125 x6)
(Solved)
Simplify
√(56 x 2)
√(72) x 1/3
10√(125 x6)
Date posted: November 13, 2017. Answers (1)
- Simplify
2va + 3 va
3v21 - 2v21
(Solved)
Simplify
2√a + 3 √a
3√21 - 2√21
Date posted: November 12, 2017. Answers (1)
- Express each of the following surds in its simplest form
v24
v1000
v500
(Solved)
Express each of the following surds in its simplest form
√24
√1000
√500
Date posted: November 12, 2017. Answers (1)