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Prove the Following Tan(90−A)Cota/Cosec2a - Os2a=0 - Mathematics

Prove the following

`(tan (90 - A) cot A)/(cosec^2 A)   - cos^2 A =0`

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Solution

Tan (90 – A) = cot A

`=> (cot A.cot A)/(cosec^2 A) - cos^2 A`

`=> cot^2 A/cosec^2 A - cos^2 A`

`=> cos^2 A/sin^2 A - cos^2 A => cos^2 A cos^2 A = 0`

Hence proved

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APPEARS IN

RD Sharma Class 10 Maths
Chapter 10 Trigonometric Ratios
Exercise 10.3 | Q 8.3 | Page 53
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