MCQs4All - Mathematics Collection

Mathematics MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Algebra, Discrete, Applied, Calculus, Geometry, Trigonometry of past papers

Question. " + " is
  1. binary operation on R
  2. not a binary operation on R
  3. a binary operation in Qc
  4. not a binary operation in E
Question. (22 1/2)° =
  1. π/2 radians
  2. π/4 radians
  3. π/8 radians
  4. 180π radians
Question. (A ∪ B) ∪ C =
  1. A ∩ (B ∪ C )
  2. A ∪ (B ∪ C )
  3. π
  4. A ∪ (B ∪ C )
Question. (A n B) n C =
  1. A n (B n C )
  2. A ∪ (B ∪ C )
  3. π
  4. A ∪ (B ∪ C )
Question. (cos(x)-cos3x)/(sin3x-sin(x)) =
  1. cot2x
  2. tan2x
  3. csc2x
  4. sec2x
Question. (n+1)n(n-1)/3.2.1 =
  1. (n+1)ι
  2. 3ι(n-2)ι/(n+1)ι
  3. (n+1)ι/3ι(n-2)ι
  4. (n-2)ι
Question. (n+2)(n+1)n =
  1. (n+2)ι
  2. (n-1)ι/(n+2)ι
  3. (n+2)ι/(n-1)ι
Question. (secθ-tanθ)² =
  1. 1 + sinθ/1 - sinθ
  2. (1 - sinθ)/(1 + sinθ)
  3. (1 - cosθ)/(1+cosθ)
  4. cscθ
Question. (x+2)² = x² + 4x + 4 is
  1. a linear equation
  2. cubic equation
  3. an identity
  4. an euation
Question. * is said to be commutative in A for all a,b ε A
  1. a + b = b + a
  2. a * b = b * a
  3. a - b = b - a
  4. a * b ≠ b * a
Question. [ 0 0 0 ] is
  1. Scaler matrix
  2. diagonal matrix
  3. identity matrix
  4. null matrix
Question. [ a b c ] is a
  1. zero matrix
  2. diagonal matrix
  3. column matrix
  4. row matrix
Question. { - 3 n : n ε Z } IS an abelian group under
  1. subtraction
  2. division
  3. multiplication
  4. addition