Free help with homework

Why join Brainly?

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


As cot thetha=2n^2+2mn/m^2+2mn then consederind to sides of  2n^2+2mn and m^2+2mn then hypo =root of (2n^2+2mn)+(m^2+2mn)=root of [ 4n^4+8mn^3+4(nm)^2 +m^4+4m^3n+4(nm)^2]

=root of [4n^4+4(nm)^2+m^4+4m^3n+8mn^3+4(nm)^2]
=root of [(m^2+2mn+2n^2)^2]                     as (a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca
 therfor cosec thetha =hypo/opposite side=
0 0 0
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