NAT I Engineering Mathematics MCQs With Answers

If p and r are integers P = 0, and p ≠ -r, which of the following must be true?

Sin(a + b) + Sin(a- b) =

A relation in which the equality is true only for some values of the unknown variable is called

Sin (2π -θ) =______.

What is the domain of y= Sin^-1 x?

If f₁ (x) and f₂  (x) are any two anti derivatives of a function F (x) then the value of f₁ (x) = f₂ (x)

The radius of the circle (x- 1)² + (y + 3)² =64 is

If i,m,n are the direction cosines of a vector O̅P̅ then

In a school, there are 150 students. Out of these 80 students enrolled for mathematics class, 50 enrolled for English class, and 60 enrolled for Physics class. The student enrolled for English cannot attend any other class, but the students of mathematics and Physics can take two courses at a time. Find the number of students who have taken both physics and mathematics.

Complex roots of real quadratic equation occur in

If Cosθ =0, Then θ=

Unit vector in the positive direction of x-axis is

d/dx ∫x¹ dx =________.