asked 65.7k views
3 votes
Verify each identity. (cotθ+1)²=csc²θ+2cotθ

asked
User RandyMy
by
7.7k points

1 Answer

5 votes


(\cot \theta+1)^2 \\ \\ =\cot^2 \theta+2\cot \theta+1 \\ \\ =(\csc^2 \theta-1)+2\cot \theta+1 \\ \\ =\csc^2 \theta+2\cot \theta

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.