If x = 3 + 2√2, what is the value of x + 1/x?
Correct answer B. 6
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Maths MCQs & Aptitude MCQs
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If x = √5 + 2, what is the value of x² + 1/x²?
Correct answer D. 18
What is the value of (0.04)^(−1.5)?
Correct answer A. 125
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What is the value of 81^(0.25) × 81^(0.5)?
Correct answer D. 27
If 2^a = 3^b = 6^c, which of the following is true?
Correct answer C. 1/c = 1/a + 1/b
If 7^(2x − 3) = 1, what is the value of x?
Correct answer D. 3/2
What is the value of (xᵃ/xᵇ)^(a + b) × (xᵇ/xᶜ)^(b + c) × (xᶜ/xᵃ)^(c + a)?
Correct answer A. 1
What is the value of 32^(2/5) + 125^(2/3) − 64^(1/2)?
Correct answer C. 21
If 2^x + 2^(x + 2) = 160, what is the value of x?
Correct answer C. 5
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What is the square root of 12 + 2√35?
Correct answer B. √7 + √5
If (√3)^x = 81, what is the value of x?
Correct answer B. 8
What is 1/(3 − 2√2) with its denominator rationalised?
Correct answer A. 3 + 2√2
What is the value of 1/(1 + √2) + 1/(√2 + √3) + 1/(√3 + √4) + … + 1/(√15 + √16)?
Correct answer A. 3
Which is greater: (√11 − √10) or (√13 − √12)?
Correct answer A. √11 − √10
If 125^x = 25 × 5^x, what is the value of x?
Correct answer C. 1
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If 2^x = 16^y and x + y = 10, what is the value of x?
Correct answer C. 8
What is the value of (243)^(0.16) × (243)^(0.04)?
Correct answer B. 3
What is 3√2/(√6 + √3) with its denominator rationalised?
Correct answer B. 2√3 − √6
Given √2 = 1.414, what is the value of √8 + √18 − √32?
Correct answer D. 1.414
What is the simplified form of (x^(2/3))^(3/4) × x^(1/2)?
Correct answer B. x