1
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is the least value of $$25\cos e{c^2}x + 36{\sec ^2}x$$ ?
2
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is the value of $${{\sin 34^\circ \cos 236^\circ - \sin 56^\circ \sin 124^\circ } \over {\cos 28^\circ \cos 88^\circ + \cos 178^\circ \sin 208^\circ }}$$ ?
3
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
tan54$$^\circ$$ can be expressed as
4
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the given information carefully and answer the given questions.
If $$p = X\cos \theta - Y\sin \theta $$,
$$q = X\sin \theta + Y\cos \theta $$ and
$${p^2} + 4pq + {q^2} = A{X^2} + B{Y^2}$$, $$0 \le \theta \le {\pi \over 2}$$.
If $$p = X\cos \theta - Y\sin \theta $$,
$$q = X\sin \theta + Y\cos \theta $$ and
$${p^2} + 4pq + {q^2} = A{X^2} + B{Y^2}$$, $$0 \le \theta \le {\pi \over 2}$$.
What is the value of $$\theta$$ ?
Questions Asked from Trigonometric Angles and Equations (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
Trigonometry
Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
Coordinate Geometry
Calculus
English
General Studies