Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


   sec Ф+tanФ=p
⇒1/cosФ+ sinФ/cosФ=p
⇒ (1+sinФ) /cosФ=p
squaring both sides  (1+sin²Ф+2sinФ)/cos²Ф=p²
                             ⇒ (1+sin²Ф+2sinФ-cos²Ф)/cos²Ф=p²-1
                             ⇒  2sin²Ф + 2sinФ=2sinФ(sinФ+1)=p²-1
similarly            (1+ sin²Ф+2 sinФ+cos²Ф)/cos²Ф=p²+1
                     ⇒  2+2 sinФ=2(sinФ+1)= p²+1
RHS= (p²-1)/(p²+1)= 2sinФ(sinФ+1)/ 2(sinФ+1)= sinФ= LHS

2 5 2
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts