1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following for triangle ABC
1. $$\sin \left( {{{B + C} \over 2}} \right) = \cos \left( {{A \over 2}} \right)$$
2. $$\tan \left( {{{B + C} \over 2}} \right) = \cot \left( {{A \over 2}} \right)$$
3. $$\sin (B + C) = \cos A$$
4. $$\tan (B + C) = - \cot A$$
Which of the above are correct?
1. $$\sin \left( {{{B + C} \over 2}} \right) = \cos \left( {{A \over 2}} \right)$$
2. $$\tan \left( {{{B + C} \over 2}} \right) = \cot \left( {{A \over 2}} \right)$$
3. $$\sin (B + C) = \cos A$$
4. $$\tan (B + C) = - \cot A$$
Which of the above are correct?
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If $$\sec \theta - \cos ec\theta = {4 \over 3}$$, then what is (sin$$\theta$$ $$-$$ cos$$\theta$$) equal to?
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is the maximum value of the function f(x) = 4sin2 x + 1 ?
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
What is $${{2\tan \theta } \over {1 + {{\tan }^2}\theta }}$$ equal to?
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