All Free Mathematics MCQs with Answers
Every Mathematics question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
1,551 questions · page 75 of 78
- A. rth
- B. (r+1)th
- C. (r-1)th
- D. (r+2)th
Explanation: Correct Answer " (r+1)th"Solution :(r+1)th termHence Answer is "(B)"
Correct answer: (r+1)th- A. n
- B. n-1
- C. n-2
- D. n+1
Explanation: Correct Answer "(n+1)"Solution:Hence Answer is "(D)"
Correct answer: n+1- A. a=2,b=2
- B. a=3,b=2
- C. a=2,b=-6
- D. a=-3,b=2
Explanation: Correct Answer "a=2,b=-6"Solution :Hence Answer is "(C)"
Correct answer: a=2,b=-61484. 1+1/4+1.3/4.8=....=
- A. 4/√5
- B. 2/√5
- C. 3/√5
- D. √2
Explanation: Correct Answer "√2"Solution:Hence Answer is "(D)"
Correct answer: √2- A. 1.2
- B. 2, 3
- C. 3.6
- D. 2, 4
Explanation: Correct Answer "24"Solution:Hence Answer is "(D)"
Correct answer: 2, 4- A. 0
- B. 1
- C. 2
- D. -1
Explanation: Correct Answer "1"Solution :(1-2x)-1/2 =1+x+....Hence Answer is "(B)"
Correct answer: 1- A. 2
- B. 1/2
- C. 3
- D. 4
Explanation: Correct Answer "1/2"Solution :Hence Answer is "(B)"
Correct answer: 1/2- A. 1-1/2x-1/8x2-1/16x3
- B. 1+1/2x+1/8x2+1/16x3
- C. 1+1/2x+1/4x2+1/8x3
- D. 1-1/2x-1/4x2+1/8x3
Explanation: Correct Answer "1-1/2x-1/8x2-1/16x3"Solution :Hence Answer is "(A)"
Correct answer: 1-1/2x-1/8x2-1/16x3- A. -2/3,-1/2
- B. 2/3,1/2
- C. 4/9,1/2
- D. -4/9,-1/2
Explanation: Correct Answer "-4/9,-1/2"Solution :Hence Answer is "(D)"
Correct answer: -4/9,-1/2- A. 1-1/2x-9/8x2
- B. 1+1/2x+9/8x2
- C. 1+1/2x
- D. 1-1/2x
Explanation: Correct Answer "1-1/2x-9/8x2 "Solution :Hence Answer is "(A)"
Correct answer: 1-1/2x-9/8x2- A. 1.523
- B. 1.456
- C. 1.987
- D. 1.234
Explanation: Correct Answer "1.987"Solution :Hence Answer is "(C)"
Correct answer: 1.987- A. (1-x)-2
- B. (1-x)-1
- C. (1+x)-1
- D. None of these
Explanation: Correct Answer "None of these"Solution :Binomial series is only valid for |x| < 1Hence Answer is "(D)"
Correct answer: None of these- A. 2.000
- B. 2.002
- C. 2.002 3
- D. 2.016
Explanation: **Correct Answer:** (b) 2.002**Explanation:**To find \( (8.2)^{\frac{1}{3}} \), we take the cube root of 8.2.\[ (8.2)^{\frac{1}{3}}…
Correct answer: 2.002- A. n = 0
- B. n = 1
- C. n ≥ 2
- D. n is any positive integer
Explanation: To determine the range of values for n where the statement "4^n > 3^n + 4" is true, we need to analyze the inequality.
Correct answer: n ≥ 2- A. n = 2
- B. n = 4
- C. n = 6
- D. n ≥ 6
Explanation: To determine the range of values for n where the statement "3^n < n!" is true, we need to analyze the inequality.For n ≥ 6, the statement…
Correct answer: n ≥ 6- A. (n c r) a^(n-r) x^r
- B. (n c r) a^(n-r) x^(n-r)
- C. (n c r) a^(r) x^(n-r)
- D. (n c r) (a x)^(n-r)
Explanation: The general term of the binomial expansion (a + x)^n is given by the formula:(n c r) a^(n-r) x^rWhere:n is the exponent of the binomial…
Correct answer: (n c r) a^(n-r) x^r- A. n
- B. n + 1
- C. 2^n
- D. 2^n - 1
Explanation: The number of terms in the expansion of (a + b)^n is given by the formula:2^nWhere n is the exponent of the binomial expression
Correct answer: 2^n- A. n
- B. n - 1
- C. n + 1
- D. 2n
Explanation: The general term of the binomial expansion (a + x)^n is given by the formula:(n choose r) a^(n-r) x^rWhere:n is the exponent of the…
Correct answer: 2n- A. (n choose r+1) a^(n-r-1) x^r
- B. (n choose r) a^(n-r) x^r
- C. (n choose r-1) a^(n-r+1) x^r+1
- D. (n choose r) a^(n-r+1) x^r+1
Explanation: The general term of the binomial expansion (a + x)^n is given by the formula:(n choose r) a^(n-r) x^rWhere:n is the exponent of the…
Correct answer: (n choose r) a^(n-r+1) x^r+1- A. decreases from n to 0
- B. increases from 0 to n
- C. remains n everywhere
- D. becomes n at the end
Explanation: In the expansion of (a + x)^n, the general term is given by:(n choose r) a^(n-r) x^rWhere:n is the exponent of the binomial expressionr is…
Correct answer: decreases from n to 0