tan theta + cot theta whole square minus tan theta minus cot theta whole square is equal to 4 prove that
Answers
Answered by
9
Step-by-step explanation:
(tan theta + cot theta)² - (tan theta - cot theta)²
=tan²theta +2tan theta ×cot theta + cot²theta - tan²theta +2tan theta ×cot theta - cot²theta
=4 . tan theta . cot theta = 4 [proved]
Similar questions