Use the following information to answer the given question
N19,000
N18,000
N17,500
N17,000
Correct answer is D
No explanation has been provided for this answer.
\(\frac{2x}{x - 3}, x \neq 3\)
\(\frac{2x}{x + 3}, x \neq -3\)
\(\frac{3x}{x - 3}, x \neq 3\)
\(\frac{3x}{x + 3}, x \neq -3\)
Correct answer is A
From the rules of binary operation, \(x * e = x\)
\(\implies x * e = 3x + 3e - xe = x\)
\(3e - xe = x - 3x = -2x\)
\(e = \frac{2x}{x - 3}, x \neq 3\)
Simplify \(\frac{\tan 80° - \tan 20°}{1 + \tan 80° \tan 20°}\)
\(3\sqrt{2}\)
\(2\sqrt{3}\)
\(\sqrt{3}\)
\(\sqrt{2}\)
Correct answer is C
\(\tan (x - y) = \frac{\tan x - \tan y}{1 + \tan x \tan y}\)
\(\implies \frac{\tan 80 - \tan 20}{1 + \tan 80 \tan 20} = \tan (80 - 20) = \tan 60°\)
\(\tan 60 = \frac{\sin 60}{\cos 60} = \frac{\sqrt{3}}{2} ÷ \frac{1}{2}\)
= \(\sqrt{3}\)
Simplify \(\frac{\sqrt{3}}{\sqrt{3} - 1} + \frac{\sqrt{3}}{\sqrt{3} +1}\)
\(\frac{1}{2}\)
\(\frac{1}{2}\sqrt{3}\)
\(3\)
\(2\sqrt{3}\)
Correct answer is C
\(\frac{\sqrt{3}}{\sqrt{3} - 1} + \frac{\sqrt{3}}{\sqrt{3} + 1}\)
= \(\frac{\sqrt{3}(\sqrt{3} + 1) + \sqrt{3}(\sqrt{3} - 1)}{(\sqrt{3} - 1)(\sqrt{3} + 1)}\)
= \(\frac{6}{3 - 1} \)
= 3
Use the following information to answer the given question
N19,000
N18,500
N15,000
N12,500
Correct answer is A
No explanation has been provided for this answer.