If cosecθ + cotθ = p, then prove that cosθ = p² -1 /p²+1

If cosecθ + cotθ = p, then prove that cosθ = p²-1 / p²+1 trigonometry if cosec theta+cot theta=k then prove that cos theta=k2-1/k2+1 ncert trigonometry basics introduction to trigonometry right triangle trigonometry trigonometry class 10 trigonometry tricks trigonometry ratios trigonometry formulas trigonometry table trigonometry functions trigonometry table trick trigonometry class 11 trigonometry for ssc cgl trigonometry class 9 #trigonometry