Proved
Step-by-step explanation:
Cosec2A + cot2A = cotA
On Left hand-side
[tex]Cosec2A + cot2A = \frac{1}{sin2A} +\frac{cos2A}{sin2A} \\\\\\[/tex]
[tex]=\frac{1}{2sinAcosA} +\frac{2cos^2A-1}{2sinAcosA}[/tex]
[tex]\frac{1+2cos^2A-1}{2sinAcosA} \\\\\\=\frac{2cos^22A}{2sinAcosA} \\\\=\frac{cosA}{sinA} \\\\\\=cotA[/tex]
Learn More
Trigonometric ratios: https://brainly.com/question/12462203
Keywords: Trigonometeric
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