Real Numbers

12 Topics | 4 Quizzes
Polynomials

13 Topics | 4 Quizzes
Pair of Linear Equations in Two Variables

4 Topics | 4 Quizzes
Quadratic Equations

7 Topics | 4 Quizzes
Arithmetic Progressions

5 Topics | 4 Quizzes
Triangles

8 Topics | 4 Quizzes
Coordinate Geometry

9 Topics | 4 Quizzes
Introduction to Trigonometry

7 Topics | 4 Quizzes
Some Applications of Trigonometry

5 Topics | 2 Quizzes
Circles

5 Topics | 2 Quizzes
Constructions

3 Topics | 2 Quizzes
Areas Related to Circles

5 Topics | 3 Quizzes
Surface Areas and Volumes

4 Topics | 2 Quizzes
Statistics

8 Topics | 2 Quizzes
Probability

4 Topics | 1 Quiz
If the sum of two angles is then, it is calledÂ **Complementary Angles**. In a right-angled triangle, one angle is, so the sum of the other two angles is also or they are complementary angles.so the trigonometric ratios of the complementary angles will be –

Sin = cos A,

cos = sin A,

Tan = cot A,

Cot = tan A,

Sec = cosec A,

Cosec = sec A

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