please answer my question
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
tan²Ф-1/cos²Ф=-1
⇒ tan²Ф-cot²Ф=1 ∵i/cos²Ф=1
hey man ans 1 not -1