1.

Please anyone answer this question​

Answer»

Step-by-step EXPLANATION:

Given :-

[ SIN θ/ (1- Cot θ) ] + [( COS θ)/(1- Tan θ)]

To find:-

Prove that [Sin θ/(1-Cot θ)]+[(Cos θ)/(1-Tan θ)]

= Sin θ + Cos θ

Solution:-

SEE the above attachment

Used formulae:-

  • Tan θ = Sin θ / Cos θ

  • Cot θ = Cos θ / Sin θ

  • Tan θ× Cot θ = 1

  • Cot θ = 1/ Tan θ

  • (a+b)(a-b)=a^2-b^2

  • Sin^2 θ + Cos^2 θ = 1


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