Home › CBSE Class 10 › Mathematics › Introduction to Trigonometry › The identity cosec2 A equals 1 plus:
The identity cosec2 A equals 1 plus:
Acot2 A
Btan2 A
Csec2 A
Dsin2 A
Answer & Solution
Correct answer: A. cot2 A
1. Divide the first identity through by sin squared A.
2. That turns it into a relation between cosec and cot.
3. The result is cosec2 A equals 1 plus cot2 A.
4. So the answer is cot2 A.
_Source: NCERT Class 10 Mathematics, Ch 8 'Introduction to Trigonometry'_
Related questions
Ratios are also defined for angles of measure 0 and:If the sides about the right angle are 3k and 4k, the hypotenuse is:tan A can be written as sin A divided by:The identity sec2 A minus tan2 A equals:Which identity is proved first in this chain?An equation true for all values of the angle is called an:The value of cosec 30 degrees is:The value of sin 30 degrees is: